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 0xe963a5532a29616dd581ada721f353429047ce68596b0361b7f0930a28869317. 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/d1c21427-73c1-408a-b19b-1eeb7d0b05df.json and https://artists.proofprofile.net/proofs/artist/d1c21427-73c1-408a-b19b-1eeb7d0b05df.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 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 0x9198c39f88b2ffa05e6e1ea33ecb2d77e1f7bc02ea3b5f8e127d5d07dd7dd196. 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/QZ5AB1904256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03877689a599e8a4a079be251e3d6c1d5ef7a3e846b36f5db7ff88c718c9713d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QM6P41804606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49a23a886b48db1e50da16b1a5cda3f0206b527849d57171e34b61f6bac2449. 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/QM4TX1989464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf699e2ccb0fbbfeeb81aad92502b1ecb1a3d003d6b7e76c06bd977ee02acbfe. Chain 2 (Bitcoin): anchored in block 959034 (2026-07-21T16:34:25Z), 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/QM6MZ2189242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac08329297135a6536ba46951a5f3f320861deeefd06a65eb0ad0742aca5055. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/US7VG2252468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb176d664e20a50bee517c6fa24c9a346e8ba2607b295ce2ab553f7d2a8e328e. 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/QM6MZ2101866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8404c90aef5dbbbba4bd1ecbf720854be51f65073ebf8f585ac23a903029ec4. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZ5AB2290236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106bbe9d229da4eae7e5a5187d7275c97dab72d6462c9cc38215d84b31f5a191. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T16:28:12Z), 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/QMFME2142274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd54d059449c7798e4631a06bcd5225bb9aab422540a8a575d4e59f0cc3b1559. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZMZ92268463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0f1152bcb5d16337ad2bd50633cfc9a94b909139c5fa7e3b7396ece4a9ea97. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/ES71G2327265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e98645b88827a9ef6eb3aaa270c1577a4d9b40b00db6488fe3c2e323dd9334. 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/US7VG2334172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96c1c6fcbacda6bfbfc24cce2615082287fe96ed7e345a7b76b99733613780c. 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/QZGLM2324561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec5d5b2ebc54d2d33390dc4240f34ea69985e7456ffe73706b5c379324f1be4. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/ES71G2402021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3654eb0c8c1550f3e6da23059e166687d961628f7a54b8b7172e495c9c4895. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/ES71G2408869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516524f4153e26b23c1b2017759ad3fac335e6891e805981dab5da53e4cc3602. 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/ES71G2415032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d4cdf3e1c3c2120c3c1066fa1a06dabed2ae10f5fa47f42828e2b88d920eaf. 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/ES71G2427448.
RECOCHA (BAILATA, GOZATA) - MIDNIGHT CLUB 3 DUB EDITION
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5294946bae3a17779972633399a1037c8a857357e1969ce274bf83f7cc4fd169. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/ES71G2502065.
TRES Y MEDIA EN BOGOTÁ (C'EST L'AMOUR C'EST LA VIE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5348b46fbff2aacb9e77ea25b3ceb31df16e87019d20dcdff836d5106b7e3e71. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ES71G2502066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5525591d9f261008f235b91fc500ee72eef76f8d66f1ee35e3f13981683572c4. 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/QM7282588209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f2c2eff192744a46623aa69b2669821496ae04c8a43f38857de23bbdf6ba4a. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QMDA62506426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a39679ce7ad51fdc079419c3b7368f310e33530a5d3b11b53ff4e432297c1fe. 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/QMDA72585796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e2f8be1894a683c4208c851f7a05359fd54e08709ce1a533250030e14a209a3. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QMDA72585830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356cff77081aa44483bdc10b88438b11a479305c6e961279f6658ff6073a437f. 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/QMDA72585846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf760882d4930a81444c172724bf71b7290ee2a69ec63ca986386a919ae71faa2. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ARIXB2401834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3d50c1601f9f5f666a2995b8dd330102042ca0771296f9442221f7bf5e3c4a. 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/QZHZ42030413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae097d0441d94c230ca3fec007726461b9065e799e6043e4c23e42fa306520df. 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/QZ5AB2417343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f576a45130f981c35be8114b5d7c9d697b2f27dfbccf156c04cb6e4c1d4fd7f. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZNJY2416253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae097d0441d94c230ca3fec007726461b9065e799e6043e4c23e42fa306520df. 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/QZ5AB2417343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7822e0d44887bc296c4b476d6b1bd6673387002669a42a731244d4e2f3db4d2. 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/GXF9Q2583791.