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 0x5382495eb778a28359fb51ae6955ce7afbb403c791e293474d7e0a8a966edac4. 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/bb5f79fd-d60e-403f-b576-926c36b8fc97.json and https://artists.proofprofile.net/proofs/artist/bb5f79fd-d60e-403f-b576-926c36b8fc97.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 0xdbcfefb9137b9c0a5b25ff6ace0532aca1bf1861aac5a93fd5361c67e66db3cd. 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/QZMZ92025286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877a96563da8aad873f00341f8e44a3fe5018ada7d10710a42993c40a4f07880. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZMZ92032015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24261fb95e067f31cedbaaf925cd7380910578aa2a3e22fde025bd84ca7da76. 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/QZNJW2017432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8a42b1ba40911fb2fae1393fe3f9be2e1f75aaf419524b8915c14316ad490f. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/QZNJW2017438.
La Pipona Papayera (Champeta Africana) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a94c1b4ceb57b865eb908b1688b82fcf7d3163381d4606f7976e57c768a3974. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZ5AB2187950.
La Sabrosura Africana (Champeta Africana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa0499b672ad96d295b2342ced3431379ef6cc919c27bfdc625fb38d43df26c. 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/QZHZ32130421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2062a6f0146c20fe46c711b5e939b782b1e6095ac7bff700c1a7defd343a50. 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/QZHZ32156973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac019218ada20b129997793bcc0573b93567ac37bd168730849999750c9e626. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZHZ32186558.
La Sádica Taquillera (Champeta Africana)
El Mago Parrandero Mix - Champeta Africana
La Guitarra Matadora - Champeta Africana
Le Llaman el Cotorrito Champeta Africana
El Alacran Espelucao (Champeta Africana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a27e6d1ed885381bf182f8be8e617923cfceac07784768a3c1a8bc67c93f7d. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZNJW2182823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd99c0261d21508bc3431c93a84cda02c0b611b44383c5b87fc1680cb1f45bdf1. 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/QZNJX2176156.
El Cumbiambero Africano (Champeta Africana)
La Pipona Papayera - Champeta Africana (Remix)
Come Callao/La Cazeria (Champeta Africana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11f7b00dc18888d2278c943823d0e85f6938a50362e190932710b864068a5d8d. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZTVM2130040.
El Duende Del Vacile (Champeta Africana)
La Pasion Del Palenquero (Champeta Africana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe164328e193b3f1cfff915198d4fb9b3d13d37e9629e85d7cdd93a38e46d6ce. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZYFZ2349028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617ae49ea501f7fe35501c21c738f3be957148ba3d9b90ea342f47ffa901a999. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZYFZ2432659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd37563f72c4c86989ea830044a23694f79ed9e47397ddea2a7a50530a43ad83e. 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/QZYFZ2460855.
El Arbitro Del Mundial (Champeta Africana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe55b5f3ecdfc35c833bc71a6fe7a700dd47676613d19b1597a82d9fe5deab6. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZYFZ2466611.
Me Voy Pal Artillero (A lo artillero turbo)
El Candelazo Africano (Champeta Africana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1005a17215aa589f2467a96afebbc29714af80a440747de65bc68fe660bfda9. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZN882427673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b6bdb00aef77d7a6c170beafd5c1f1f03fdc5e8231977bf76703c912cab19d. 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/QZWDW2539693.
El Tremolo Africano (Los Reyes Del Soukilla)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f730a54307ce6ad125ead61aa90608af74cbe9c1867cb4a09099e6c9239a0b9. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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/QZYFZ2501613.