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 0x43e187f692bd15d451952c616f812cd14159e73b014bfdbda198005b4c8901dd. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f811b3cd-f160-4f3e-9927-c4fda7d5ee6e.json and https://artists.proofprofile.net/proofs/artist/f811b3cd-f160-4f3e-9927-c4fda7d5ee6e.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 0x8f2c7745bb301c5513e68cb805d4f3d6e1ee58883833f0f8289d3a6a3d974af4. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GX5MY2181532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fd5448f07cb91beec244aefd5bc828874567bbec03f5164053b178d5a50904. 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/GX5MY2181533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54239817ceadee77528fc49690bd6015f782f99800c46601b070632ef3cd8006. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GX5MY2181534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3bb3b0245d9aa0f3975069c1218bd078758958e0d9b9ef2cd66b69fe5afef8. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:42:29Z), 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/GX5MY2181535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c90d2daa435c6341c7869e3c3471a74630ee98bda019453326635c519a621f6. 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/GX5MY2181536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1627ddcd9d55fbe67b0173da851ebaa2b88ea0c660567aa4d02aa79101a4a1aa. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:48:55Z), 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/GX5MY2181537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6810c740f92b49d358b2a95ed4d0afe9f5dc3bb9ab71baf4713fa35043b5bda5. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GX5MY2181538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc359c48dbfdc8baeac00fc5a4468f5097a5cf6f1cbc3746b1a414b0a7ae051da. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:38:28Z), 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/GX5MY2181539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3420d81427fe77b7d9fe40acba0e934e4497783042fab58de518c649dc632609. 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/GX5MY2181540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0645e5df6caacde060b593f6608ad2bfa15085ea26b8c0b832636e86abb49422. 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/GX5MY2181541.
Yoga Del Río: Sinfonía Del Arroyo Fluyente
Concentración Junto Al Fuego: Calor Centrado
Mares De Relajación: Melodías De Relajación Del Océano
Relajación Oceánica Para Gatos: Melodías Tranquilas Del Mar
Relajación Junto Al Fuego: Música Calmante Para La Tranquilidad Y El Confort
Acordes Para La Siesta De Gatos: Sinfonías Ronroneantes
Sonidos Suaves Lofi: Relajación Para Mascotas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497a22c23c7eeda68d9c4e94229533e3b3be46fe9229a55db86001e56758e82d. 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/USLZJ2516676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae89a84593f7d35fb7f8cd991f6686476ec15d8f4cfe54cc8e262d4d3d70378c. 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/USLZJ2516682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af4e4bbcbc3d41194a18c09867099cd457d1419cf32ab41b76cbacc6c82d0c9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USLZJ2516662.
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 0xd05e45d5786892869c958e2cf98347ccd4535ac1c2b1548ec5057a58390de2d0. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/USLZJ2516709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f04dc311c74df76ca072ad70b77cca0978a03b31cf56efd375fabea2269ea8c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USLZJ2516733.