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 0x23a0e266e11195f62fa3c8fb01022d06f6005cd25d1bd14cc4e937dabb307872. 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/4ba7d9a8-5dbc-45b1-8671-a8c410426296.json and https://artists.proofprofile.net/proofs/artist/4ba7d9a8-5dbc-45b1-8671-a8c410426296.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Retiro De Mujeres: En Espíritu Y En Verdad
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 0x223e50c36c50ee6786419a268a1b5f8c014f762348544f6eeb36a7939d96e1f6. 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/ARRDV1101001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c107a1af2afe87a07c70b93dd7d1a101ecd8de04cb287b5c9a58e88881ca6f6. 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/ARRDV1101002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46be08fbf4ac64a5dc5a1bce1828cfafe17941b631064d40799e53bae849f67. 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/ARRDV1101003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd64782500e78f56c9ab58798e49f4eecc9bd0892cdf8860208b1641df47d09. 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/ARRDV1101006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80d52f63288756ad875292cae04992eba692bfce12356f898f73f0dc592c5b4. 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/ARRDV1101007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe150982ba858c0fd0dcec00a02ec7aaa55d7d4b760318a189aad4a9ca1e5abe6. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ARRDV1101008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3ff268cc466db63ed66d376562c12224c9b8a72270048a8b75a84cffc472f8. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/ARRDV1101009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4e7182a60b9e1d9a21787ed8faf5474d0d79b2c92c0853cf60a415cec5247e9. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/ARRDV1101010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1188e5d09493d24dc14ddde0bebdd5da215b1375afccd8a475b7cdecd92dce14. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARRDV1101011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4719834b406f933212df27bc26664549e63a1ed51d075cbb60b1d25d009723d9. 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/ARRDV1101012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a9ea1f11f28c74a983196b61e377e503fd14eb0e0ef8b26014356fd7b4f9217. 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/ARRDV1101013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebd99e947f95d25bd62e1eaf75e1bf870bc4ed462b99d31571b8d01afdacf5d. 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/ARRDV1101014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894a83529669bce1d13c7f409cba2ff7bd1a6dc254f2f80c21e90b58abf8d9b3. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ARRDV1101015.
Retiro De Mujeres: Buscando Agradar a Dios 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9954888b4f5196d3ab5d8be7cd0cd14b00227d95e542a4f084df08eb397700e1. 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/ARRDV1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd317e489e43c078d65ebeadde0c50d9bb62634025362d9c72a4ef43aaa8582f8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCAIF2420665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bd1c1594422f48d09aac77f4afe0ca298de2e5fa1ff7648576acc9e888a344. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/ARRDV1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c0acbd9593b246bd05ea8155eff6718bc3cde26f2c0178d98c278372b0ac35. 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/ARRDV1200007.
Villancicos De Navidad Y Canciones De Navidad
Villancicos de Navidad y Canciones de Navidad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dda70a3a57f8a77af099dbf6b1ee533cb61e621e665c666ec132dd57b32c01a. 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/AEA2M2294329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596ffcc8556b1759eff7ee658c48646733cd2ff6bd43249bdea04ada8bb67f7e. 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/AEA2M2294335.
Retiro De Mujeres: Buscando Agradar a Dios 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a921dc8f1c4bd7f870e4b82c83f83a1162e9fc3a5b12af5cfa45864aa727cd. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZNJX2175241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afd6692595c5a19d37993de4efa4ebc0a5140c403b3664c9beb302cdb1d093e. 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/QZHZ32264226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eab87ac052181d88f546fe829a27b9e97c8e0c3cbc6786476daa0b981cfc375. 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/QZNJX2175247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcf01c0b8395239761f089d38ea3089018d900e854fb9750f17e37e98a6d789. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZNJX2175248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e803e12a9974a6b9e88564a86b8d6bd296ff579756f072b1538ad2db635992. 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/QZHZ32264227.