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 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 0xaa54a952ce92fd03caeef7d01ebf741c06ea3ae14dc4960073796811f011f901. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f8df790-5f75-4c77-a60e-acc36e12b8b5.json and https://artists.proofprofile.net/proofs/artist/6f8df790-5f75-4c77-a60e-acc36e12b8b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hierba Mala Crece en Toda Tierra, Compilado de Skapunk Latino Vol.1
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 0x920c4e091a46dbf69b8c6a5afc6031f23a2bcc1c832a027a24862bf70e5581c7. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZ5AB2034002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57e3005b66e70d5c45f608287b382eaaeeddeb54c09a47c41e5e007125a72ae. 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/QZGLM2201966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450571503fe461cac15f3db33a2cb1412fe1de433c4faecb913d06cc361cd0b2. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USA371533200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f8d7da532ea3864a95c976a5dbe1efe352438fbf892bcbc59f5e4f916f4e2d2. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USA371533201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87dc125f414510c5adf9c24f5790463d2668af74c8a2b91d9a39dd76630f7e3. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/USA371533202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e41d326837b53456f4fe1853a08ffaecd8a19d0515319600aa8b6e91bfbd866. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USA371533203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f60f67ee4c57c78109afda661dbaa62a4239b4c579e85b82eb5543a6c166f0. 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/USA371533209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x553a530f8c56d5f60b66937b5881ed1df813a3f6d8113e0733cf16e6ac8d727d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA371533212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd4f82ce311253c1dd63671e5c9a0cde564b9acc749a96cf359b6aedacc2c4a. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USA371533215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55223b1807e50f3071dc1185ef7829ebd4538d8e4b4121a41434dd4726f5401d. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/USA371533217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa36560d86900cbb5c0aa7070b89f682b253d326cefad2fe6a4e1de39026700db. 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/USA371533218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14ec41d6928814c49c2d0ad4a27c3d0ff86caa84b4a6016fcd45bdf77b31bdb. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZ5FN2594998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb944747ea0d1ae3b9f44180e0bd341dbf8982263410bcdc40a74690dc2e4ed60. 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/QZ5FN2595003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d22a1e8d43bf91b746c091e22982091cc71678a7cb1309aa370a8030e71af8. 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/QZ5FN2595016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b81890204a2da59ce4fd53789067f83c37344a42976478749e8c6e34f611c29. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5FN2595025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2be085ecb2086827395ff2ac72e3cf2718f5c626e156912fbf53622fe901749. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZ5FN2595029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfc1d67043edcfbe0289ef82b83b203d250f0bdb7aca495bbb01cbadcf27fad. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZ5FN2595032.
Fantasmas En La Casa De La Abuela - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abc573465e69804bbeb2c81cf70e1e08c8cef953da2820bc311d7b9e5df18f1. 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/QZ5FN2595033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1cebb560cd5ee53c1edfdc0d1fa01a69f14c0e04c8d89abc83b818fb3293ef8. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/QZ5AB2033999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd53b127fb480b74314030701f1f37210a326929783cd7de8ea4492b96f2734. 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/QZ5AB2034000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dcf802184f859785558b8360abc93b38dd13e618ddd388f1ff216b637c98472. 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/QZ5AB2034001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920c4e091a46dbf69b8c6a5afc6031f23a2bcc1c832a027a24862bf70e5581c7. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ5AB2034002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e58ebb2a333b8330b5a4a4b00419edc2fd2065d981512ceb06186c112c1d98c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZ5AB2034003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047e69add01fb280d993812edce557c22ce6d5f8da0a23dd7eb1f251d380bda6. 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/QZ5AB2034004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78b0efbc6793817c41f13a33ddfc4006d32319dd78f345853f4859107f472e7. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZ5AB2034005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33417732d37928396786da23b886b82f8ca8509fd85020b47f1a8043fea94784. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5AB2034006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c030b169ecef06258b7364caf3a99d30a662b636d83f6d8d9d907a0ed309310. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZ5AB2034007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4e00b68c69b1748ef950da35a016b60dfa0c356cea781c47ef35cd5e80433f. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZ5AB2034008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42d97e8daa5075175fe4d86df51c6baba5c74295c5bdbab0566d2737a41c207. 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/QZ5AB2034009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09efd318e9c5a78ba1cc17772ed9a5d78f6a48b15131fd843ad11f2ebb520739. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZW9L2492088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcc70f69d0ce29cba0ca0dd5fdd8405f61a3c01179eb9b9071696a927a74136. 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/QZW9M2426893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009828656bd3ac9c74311813cac8477607dbb5ce3ce3a39594ea782188ac7688. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES71G2234601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd362c7eb2eb4d7cee4454b847042979ffa18098b123297ff42d43c45705834. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZBRF1839732.