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 0xb9eac0f5a3f82e7881867d0043ec1e55c25adbf08fd1baae3385a6966f7cdd38. 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/bdee4abb-3d05-4a37-b5d6-0033d30a5099.json and https://artists.proofprofile.net/proofs/artist/bdee4abb-3d05-4a37-b5d6-0033d30a5099.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 0x777fdcd524bf319ed8c7e5247df01c6f3a240b067ddbe32cd46101d6b0d825a6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZ5AB1725300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b299f6a7cf2d4f9405ce519e4e3e4375cf528e65f98d1f54eeafc9212295c46. 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/QZ5AB1725303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095eb88f8f969d9e2ff824977cf8bb8425c72e3934f9a2c2225ccbad95dc2da1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ5AB1725305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6cf259a8f21382123716d7bc6f5a446d6a2467b0b16f95a189b132cd0a5ca3d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:22:41Z), 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/QZ5AB1725306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee88fe590fcbb5d75d9c09f77ca2aa340ef2c48f2f7626c8fb45331cdcdab5d. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZ5AB1725308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586c566800a3faa5cac7e5213175acd4f6f9df706ea121800df40f0f7d28ef88. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/QZ5AB1725309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850250c7ccb6f8910a71f9180632b730cb15e7a9b540e7f43130c1359b14f340. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:06:17Z), 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/BRUSA0400821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854fc5402ddb95d1ce55a266a8d99ec5d8d5be60ac40d2057fc9f4d2632c696a. 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/BRUSA0400822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf61fc6ba9164ba3b956e48b13593639877f3c8f30d90a732bec1873f65a93bd5. 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/BRUSA0400823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c7268958f00e1c0d20645e413972f383c9847159bdb35b8cc17d06826a00a88. 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/BRUSA0400828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be01e56a40fdf37a44c54150bcb9c1b1f23a778f2f157a4053024911d4fcc97. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZGLS1910589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b1a61488d1b11f35abf3863f966ea4101e672ffb4c2ee78d5bc3b1e4376a5d. 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/QZGLS1910590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fc2e652f5efc93d8058ea1ede9829f89dfa288c7386b6b0cdbd888c183bc2e. 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/QZGLS1910592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f21cfbbfb6a4f1855ffec75b68dd2eb4915fd58a900c8438437b94a495a22b. 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/QZGLS1910594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e4b483051ced32dad15b75ff4355fad19bfbf5d8785e660e62a707aeef961c8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZGLS1910599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80701667303416ca2dfc6c7ec7b89278f31bec58d1c5c162bb956300d8e7f26. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BR0J21900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e3e97ea9873a67ed616f5d33606e369a65473c8153993e10271d0dac68170c. 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/BR0J21900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06ee7eb11e37f26bc534bdf592c56978a4fbc2a1f988efcefa74ecddc57858b. 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/BR0J21900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0915ab9e80b0232bbef98cba9bbdbd87adbb140a69428fbc3524fa354de2bf. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:55:08Z), 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/BR0J21900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7810f58ad802cb7b0bbbb96254f8254472d029ba250fb419f0cfbaf89a8c122. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/BR0J21900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e059623e96d53025d50655256ee53f979f5807e5d771d62715e93fe3931605. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BR0J21900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c37ca4bf8ad222f8818732052fa1d0bc77b797c982f31aec13b73143ede4495. 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/BR0J21900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5baf84d3a496c395964d26af7b935c79c86a8bcd0fcf4e196f1dd1ce2262616. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/BR0J22000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756b19c0c432d93419cdaeca7ccc289ee1fb4fed1f24ba876a0d710706d20581. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:23:52Z), 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/BXQDJ2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedff734ae44ae599209db43b38fa44c36bb29693707052b0e385b79bf5eb9d5b. 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/BR0J22100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba460ea4a8c2a23e818fa94ca5ec80f591419135681f7b2c8ed7e2e1b81fa80e. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:45:49Z), 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/US7VG2325507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e79031aadef8010019758b36c2ab547458ad1faa1a816a421ca9827fafa44d. 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/QZMZ92358327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36284543d782a3020213112e1e5cfc29596b7f9dad33b29aec185315b1c1de69. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:29Z), 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/QZW9K2370475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f300a2ef0daaf80d4774c0618542d964fe14516e366f1ac45bbd6ea2dda188. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BCMRX2200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ca8705ebd55826637f1f825c77256e0ebd7fbb47c7ddabd8987d23b78ef3a6. 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/BRTMV0800222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0ddca14e19ef3214373377b800c40cbb460f38b45758a536a5a43c68de27a8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLS1915997.
32ª Califórnia da Canção Nativa do RS (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc049e195dcbeced112a7f1aaaf40869f965568887ecfcf2e8da21fa8228ae7d9. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRUSA0300736.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fff7a399bc3998220a5bf845695ba5bf98d10a3f96872fd05d148073593915. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZGLS1915992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a0bebb313a829ca7e0e243b612ce1f824e1011aa7936a5b2dbfd71b463075a. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/QZGLS1916002.