1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d58f9a71be2b5f9309f38cf219cca7725dc11d3479760bef470b196e611d0a. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5f576776-b237-4878-992c-d3bb1a4ba7c5.json and https://artists.proofprofile.net/proofs/artist/5f576776-b237-4878-992c-d3bb1a4ba7c5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be6b51d9d5fb3942a636d58441ed34e8a199fb2dd76d35553abdc04c1521f5b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41297348d736d6ff3bafbb13609bc5bd95fa91bd4218e081c3dfaba800b8534b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:42:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fad67a13e1273fe549ccfebba89314dfda09f6c70c624487a76dd7328a2e0b. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680c69b1b39313283068164431e99e928bb3aa6aa0278f08c612d0101db63bda. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba172842b070a2f310b6c495fffae0fc3a397842712abaf2565eea8e4ff0a3a9. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:44:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ed6f1e1e6eba3fe47e009a9fab3d0ed8b09a5ca68f843a381ed24a58862b9a. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3f59e9856d2487110c62da0fdf09193b74d60bdefbfc1c4caab2d24f767d3f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd191256127b50b7bdb15e31229d6f1dcbf57283beec1cbf9997d5c93cf028e63. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69eb41504ec547825d2c549777ba2d8d55970b232ea4eac8be80d2070038b39b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe8662c55482d5594f6c9151cd537cb02c6dc24956b3387adb9e651b680136a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2d4ece6276a1813aaec2275e6a5280781d39e4c336188786b8a2f7fc333938. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:55:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dc8d699412021be3adb2d7315a5a6a8beb760865bce1f39451769b2881108d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dc1c76bd33f30d99aafe9206a2c19fc98bc8b0a185bed057f6a3b0bd379390. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a2c5a54b89ee43fcbb8001e2580fa86412f78e3d140303aa7423b19c1ed287. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:27:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1735975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dd2a20fd00cf1a5c09407a1a1f800f15b784fe02a852a65817593107be89b9. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1735976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd6476651d027dde6c55594527d1048e94fe1842c0ea5747d687b4c7d04df2c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1735977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916933503bf7b6c28da03b8333337646662cea5d025b12aab4156e8558df86b6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1735978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d246a1f0b41f41f50589e22424861b466f00c14149fc00f886e6cc067c7055. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1735980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b92fadc4b20d08c886500165bc53443261c2dcd85ba73f46707955d8f50c72. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1735981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5e05b7b446ad75954b087911ceafba5938e58ed1173ab7eb74b4c8707e59c8. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1735985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a0b4ff38f9b068e76b4bfe3f96c2b91876cf6cf89bdb73485e88cce5aa42ce. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:53:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34afe269820a660cbcf76c0d93223873f4454511800463b3002a410778823bdf. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec32c591a66ca2cdbef4d14245b8cfc79d3fcaa45b22fb69df11382fbb9fa27. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1731366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e026c63690feeacc2abc40d44862a558e7c7deaa956e1a95668c1dce416e3d4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1731368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b41508b9d93060624980fe4fcdf5ea5aca6d32af9f3aaceab370cca87e89ab1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1731371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40aa2790b306de2d256084846ca12cb69e352a39d975eb9ebf1125708ca5c3d4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1731373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1405a252da5482a452050a202708f1d22a5829fb175facfec275bd00c4869b46. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6ace0e2033cb65d2b24e375e824f4069ec58765f5f908a4f6e1aec19a50239. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587817fc27e34153e3102da4c0e4813ba2701e66692f5d4f8c8a12d479263502. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881904472c5b9cc572132808d41146865cd667bb26643aa98b42be4df59e505e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a18a73e3bb4d3e9c7a6da5d2d59eee8cd7322bb491a6295dbccdf54e627146. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:33:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b8e284de866338991c8a427ec5fd850821e2baf3654157f845e227a43f57fa. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:09:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac62672204f7ea8821a967b5fe9c9d14c91a4ab429b1344d80516ce6f42d4b5a. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dcbffa0e0dfc013237fa06b90e5b560655b0708b4d1acac0c3a83aafac5ea5c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:05:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95aee755d0578cc36b417329ed1b45a4af5006b292a9e59c8b4b3fbce0a5d2fd. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1732311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2515da207132754085463b522babc1ebe7958756be1a881c655f88ff3363b379. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:39:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1625117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c14d38564423b08e108fa0250170eec122b8c80a0cfb00c1787ac7cb23136ff. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1625125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8438c3f033186a3d154230b8f7206fa6cf4b7b169a92881e46675f9b8ed5ab9d. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:44:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462643d77df0c134ef49d6129df71d8ae923c4ddd41e537bf36ab194d2b4b87d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:13:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c614cb6996168a9f18c389a395c6ec5f790407a19169031b089c71b3d77644. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00c155ebf12cdfaa08b14648d659bac847e5efb2da22d6dc997eee23ece474e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3f802b3f463fc739f3ae0028b88336b334d4a1cf6168f6c6679a4e2901e926. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310e56eed12182eb950e53cca2138a7b88215c6d7ffc12b1d35d236f078d8cb1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16edc5f52c554fba211028640a0c42038bce9091908af019c266e82029c0fc72. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70829e973030390d57690d578d435027b378f73a25eacf1bdf37f73a4cbfa09f. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb96a3341ed56c046ea8b616feb3d27f973a83809cc75f2701c29e54052ce10. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9df2b05af5d1949649068cdfbdedb005e54a0efec2f54ab04fbcd16fa8680e1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb24c339d248964d36458534a89063cccea1a059a67629c673dd429fc4ea708a7. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc69e55dc935bf37101f30c50f8a262cbd89d46d1a5377b2b250e673e08b7581. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560f1eb1778a6f3ea80ab58b8ca8673b15262550bd5b99b45e31262669ccfe22. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:07:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1876c37695e11c99bf4bbc695000b6e4915ef0b6f0aaaa8ced0d83abe31cc3fc. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fa43a18f3293cd8919fed89d9b94c186bb6d4f3552c84c7b6abb198e5d2ec0. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710e0df0116f2628c12c9c856e5c2bf2db0924ed749e13b21363fb177bda7bd0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614bd5fbf132bda728f11d3846b769941b621820181165804c8d33f7641c68f5. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:21:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629ba9fd626be085eaf7638954434a0d0da54e14543c5ca462eed67814ff03e3. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626fc7854c6c87249115b519e239f1cfe4f7e2479be6dcb9c098dd6237dfb01e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b59187267e503812ae0b5453a27dc8933bce015ff7351787b7bd62ec04441b5. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1752767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73cfda912b5d28261135341da32fefa90c2293a82e3bbbcf5f7b4a6a71b65f3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2042507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839d9cba57e0d4e97f405abd6e5f49a7e260d62353a04edf5ff675d75fb291b9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2042509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a6bbe45692bb30b8e5302fcacb82436728c5bb8e7476c45bc969f5aa76a1f78. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2401529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c36f7ac184cc54e5c164fb97890db2c846c958c887027c65c5b241dd821c431. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9K2256247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e632e147041a88c9192b6be95e1234addb57ebd33b949f0ffd37c0ce477d134. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2479849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebb4015ce1069626a651026e366cc839f1c3061d3c8479a23e00894896788a5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJV2273507.
En la Sombra del Agua (feat. Alejandro Filio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c43c7104f92a6be1fd537a62f970126c62d2816f9b04e13439d1eac7969ee97. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG601013627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef198721e7b3076f827b7d56a321acdee557252cc3c06ed3681068895ab278d3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAFU2168464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a701c48adc9d63184bcdd6b712e384b372586b6eb262364065ace2e6a7408a2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXD941803811.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch