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 0xb544786cf42398edde5393c9859ce3ecced7dfcf1b377bc9ab38041a392c4d7b. 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/e4df241f-4fe4-4bbf-b73e-1fa812a9da29.json and https://artists.proofprofile.net/proofs/artist/e4df241f-4fe4-4bbf-b73e-1fa812a9da29.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 0x7fe4143a147b4402fbc81d3c7ae722ccf3190beb205d4d7a704272c32136435f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/COUM70600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe4143a147b4402fbc81d3c7ae722ccf3190beb205d4d7a704272c32136435f. 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/COUM70600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aadfc9e201234d49533e13c31dde8f8d0d27bec9a32679eb24c92aba97f1875. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/COUM70800283.
Enamorandome De Ti (International Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3ad11316afb1997fe3706e7e635d4e20747ed93c313b4647fe7bda839a0681. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/GBLFP2039724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3ad11316afb1997fe3706e7e635d4e20747ed93c313b4647fe7bda839a0681. 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/GBLFP2039724.
Te Quiero Tener (remix) (feat. Landa Freak) - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e1c7d5d73358eb1663122ba5e47360570e7c05b4290f3b320fa3824d815db6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:17:33Z), 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/COC011329272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e1c7d5d73358eb1663122ba5e47360570e7c05b4290f3b320fa3824d815db6. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/COC011329272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3f3bb737431cc6839cf1aefe802c17b57d600c9ebd2a8fd3e296418652a513. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/FR96X2593530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eef6271dc1a2b34aa017161dd776471228866bfe78b6bd0627dfb09f9d35695. 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/GBMA22512952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafa532601ad4c7695fe37a0062a5a10ae2741f4876bcb8ccd827d342bcf9cc6. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/UKXN22484957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70aca520a74c577c3ee0deeccf8c5270c830a0bd2aaaea6226d2eb93a4ebff7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBMA22512955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a81e3d7f0ee8cfd29b81086411b16ac555fa14c1ee307118ba53a04e99883f. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:52:52Z), 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/VEA0E2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e837919db966127fd79c19af36bb6d9f8fb991f4cdbd73a3ba68d719ceb944. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR2X42522680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a26819add58e625b8be829b68ce7472f5065550de454185f542ba9c324f91ba. 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/BRLR62000003.
Masters en Parranda (Colombian Pop Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809765ea67dace16091a162545531532c55bbd1552131911ef982e79163fec65. 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/QMDA72145965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8c0d99dfd97566d4dcfd225aa423b4d1a522b20dee4d8425cbd1675724c22e. 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/QM54E1500166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a26819add58e625b8be829b68ce7472f5065550de454185f542ba9c324f91ba. 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/BRLR62000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3c53abce2b37936274f842cf41c665ad736a6d67a90d12e486a8a721bd1c4b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCAEY2046818.
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 0x3b02e5c3e75f351cd84ece19048c2016ed2e6c57eba51cb57dec113472518033. 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/COC011933477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4277abc0d8a0b8694ca65b5e656f2b7bae12a6eaa7b215cc977ba7951d945e0c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/COC011933455.