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 0xea0dc2b86f03972f03ca269cdbffbbffb2b6aff6aae96ad81b8cc797fdece69f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/526b8bab-6a73-4f9e-ae85-e9119c41f102.json and https://artists.proofprofile.net/proofs/artist/526b8bab-6a73-4f9e-ae85-e9119c41f102.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 0xc3e32fc338eedc9fcebd0c0cbbd47655eb0294955b09583dfa8b4e7d1f646653. 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/FRX452359155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538aa337ec2ff7e9ae1c988a50635df8871934de7103ae97ddd439766bdab470. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DGA082389492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74beba0e60028ca7fbdcef890c6123711d09879f3d40f1d332280244e3386641. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA082389495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abe24ca20f8c092c8ba820ada03972d00ece091ac7db5f19ff12405d01dc9d9. 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/DGA082389500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcad615e3219f6a2d0114b65f7a9cee78edf0c37f57465d15337c6ec6ece272f1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA082389503.
La Herencia del Rey (Y de Aquí Pal Real...)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab1b54600fbbc33c95ec9eb51450a25c3cb6dc24121a6941d39f0cd9149a376. 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/FRX201907485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf27e556a49224e3fa4a2577918f37f54799941b6821a540480013cde8eec99f. 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/FRX201907486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647f3542f000bcb07c9c002f7bf9d1f59b6c955b1a45d18f119e5204cdeee3da. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX201907487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea0ed1dc265da6015f8ef0966a225044b6f7b9f4d8e69da7fac4e65ff8e1af1. 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/FRX201907488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80dfa795825ffb722c1e3e247c3e97ff5d2c21de2e9b621b5b91db378c167837. 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/FRX201907490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fd4b331395325b0e80648e2d3b052a36335c12ee0aba9affc9bcfb75a672e7. 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/FRX201907491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c591d99a47485e57fa1524150af620ec3d95654662dfcc4a091c32028b79eb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX201907493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c3dd05765ae9707c2837a5af137ed0ae72386a768dd3a3edbc7c7f40108fab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR10S1931812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f57f6d741da7756bab3d8a2166f6349265ee325dc7a2aa5d5646eb4ff0e7163. 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/FRX201907494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8228bfdff33995b951ab3531939787c558ccf6864e74ba16d7cbcafd336ef6bf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX201907495.
Nuevos Rumbos - La Herencia del Rey (En Vivo)
Y de Aquí Pal Real - La Herencia del Rey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cfeab31fb9e31e814e4065f213eee38d9e42b814457d363dc8fa95f56c0e55. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR96X1684127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720a123d1803aa8d0e70f98ba06e4859df48ed4abbfe54d278a4c2dc4e86b949. 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/FR96X1684128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3ad5a69efcc9761c5ea594800599e651ba10b890f9cbf9884c826f0233e94f. 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/FR96X1684130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4267830c19eb5ccf37ed9fb895ef8f8e37e7e90b8cfb6a3fbfeed5497da870. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR96X1684131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ab0b7a1cd46297aac752831c9bf1bf996509ef54f23c1a18f3511af7a71d5c. 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/FR96X1684132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665bde5cdd90fe362fff7b5723a5cb1c94a6779c8d6be2e5814cfee302601019. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR96X1684136.
Popurrí: Bésame Morenita / La Loba del Mal / Las Guilotas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893616f6da1da6aabb8440b2959e42bbbad5fec8e5464089d704024ff7179315. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR96X1684137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e32fc338eedc9fcebd0c0cbbd47655eb0294955b09583dfa8b4e7d1f646653. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FRX452359155.
Viernes de Parranda (La Herencia del Rey) [En Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f77daf7437bf1c54c0a53951ad785ee529a1af14db219637721d72ffeea1082. 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/FR26V2015000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6b6cbbfe43f012cdd50e57b5d8fb1095dcb5054cda6f3a8f3eecfac9fa53c9. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/FR26V2015003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c3dd05765ae9707c2837a5af137ed0ae72386a768dd3a3edbc7c7f40108fab. 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/FR10S1931812.