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 0x539bc17eefe8fdb479c259f7cacbbdae86d1d4b8212200c3bea3f40f3eaac7fa. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49547b5a-af8f-4d86-9138-871d829c3e57.json and https://artists.proofprofile.net/proofs/artist/49547b5a-af8f-4d86-9138-871d829c3e57.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 0xf32ca99d9664835a69e03cf498b816b6e145db0932cadc55cd3d52b2ece1c5a6. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/ES71G1923830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80fe5c5a64ce89ed5d06047c833df16e0286177fa596020d90d4c0d4610fe8ea. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/ES71G1927279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1608b9d06713f4f6ed8c6e9f783e1cecc50d0df5a38fd10793eeea92443e2ca4. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ES71G1944920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f01ce82daa3f8cc627777404b9086999fd50e0738ba4b72ad5bf09f165e0b68. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:51Z), 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/QZGLS2075304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1bfe8332219e749f35b199e3067f6f70e1f63cfa2f74419f4657aaac3010a3. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/ES5152000735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919b56c4597bd31396e166460e84cab657102afc19cba10d4dbb8e2e28cd4725. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/QMFME2042982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc985b7444e863f2a9cef0e8b77c82059f07be6ecf035018303a496977a12f572. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QMFME2094047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5634be0ed998e9417506f700467fb84d6f8271f5193cb448c301e1a50bdabfea. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QM4TX2106456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec508787a46151900b768a1c9443c30e33359dcd26653d043270fa38e35b054. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QM6MZ2188643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb017b524c712a7f3ccc46633bedf5455bf8b193fa39dc6eede923bd4ea4711d8. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:51:55Z), 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/QM6MZ2188659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453d9acf68f43f902758929d1d5363fd8ae4f9de8593fd1b5739ab01751565c0. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QM6MZ2188686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62037fbb6cffab35b50ff46216d74cd9f077ec4e18bc7f51bcbf72b7df14efc8. 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/QMFMF2109001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbddfd101d2a05ebf9cf45d806a92061d368af9439131a390b2ab91e8a844941. 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/QMDA72197073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc388136922223398ffa08ad1d2217d0981f3166892911283dab7f71180fe691a. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QM4TX2254568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f15fab3b965d328811d6a6f2595d94293ed55bc95e7c85b9d2ad2c7e92b43c. 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/QMDA72221611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a14fe74ef2e6963c946660e1a8ec12f588dbde9883c4b15917b99662ba25418. 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/QMFMG2315915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dceb7483abfcb1741a3d8cad5e24dda3c98133e25da159036d7a90955245be. 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/QM6N22440936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f84ba381fdf016e1eeb7a5cee4229eb07f0765de013baa90987404b9b38a535. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QM6P42463214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0545e8c832563a1a4507999faf99a8b01f63ea74e8a483dc4b6bee9fef995a28. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QMDA62439626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e83e0247dc4363ed88332a445f3f1c1fd38d3d55e81e4cc29690e494bb5e7b8. 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/QMDA62554730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e61394c82050487a5a9f3504ef98635610047f00ecc8651980c460ffcbeaa5. 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/ZZOPM2221910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006aac86338aa9dba07a8a1644522a9796ab82c7d3c8e866771a7ea948292613. 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/QZHZ32295701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006aac86338aa9dba07a8a1644522a9796ab82c7d3c8e866771a7ea948292613. 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/QZHZ32295701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe204ce8f73966f562b77bfc560977dcda2895a8e8c5d3e3c8813e929a9ca5b. 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/ES5702002642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9698a0fe320c299c238ec0c5158339e81c438a2e67f4accb0beed204a91937. 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/QZGLS2047093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa08f2923dbb71c3a497faae4c9ed7358d227c0d1901b4f05f3af59355c570e. 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/ZZOPM2118876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda01a1ccc2a4037e757a5964a38db0414ab9cab7807a558466bc3a1be99c65de. 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/QZHZ52244287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaab804f0fb7fbfe02048374b4aec00d61231dd30a113ff1b5a8863771242605e. 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/TCAGB2294317.
Always Vacaciones (feat. Xavibo, Çantamarta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e07669b602969d0cfe4938316b9a2f5199ada49e0ad41e007b7fb59a03bc6e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES5152100293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e07669b602969d0cfe4938316b9a2f5199ada49e0ad41e007b7fb59a03bc6e. 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/ES5152100293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2072c8b51344111ca1c7f95eca002ef5ebcbc1ff0ecdc48264d575577d19f29b. 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/QZNJV2327267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dbab23d6db05987880f32fd15bea2918dbc841c3f9152583d4cbcdf27a7af6. 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/ES5152400091.