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 0xb40530f829027fab5efb021e2f954074f2a598295cf9c5ec580c7d6ab3631031. 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/436d210a-0813-4f80-868f-f13a0ab4ff90.json and https://artists.proofprofile.net/proofs/artist/436d210a-0813-4f80-868f-f13a0ab4ff90.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 0xa32bde5216e54c59e9ae7283a221de402eb8bae2d22f4744ac0f0bf9aea584e9. Chain 2 (Bitcoin): anchored in block 957613 (2026-07-11T21:37:58Z), 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/ES5160700875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da05bfdebff8f86feb2d567ebcbeafeae4cecb1913b10d248c9f4a9fab0e7b2. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:04:09Z), 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/ES5160801255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d5c3a9d56bd17cafca8470fd6afb35a4f455df1e882f6378aeb7b5fec7cbf7. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/ES5160801259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7688c4ed3f17196bb25973c8f9a568ef5fab4014cfbea808ebca9a5cc47c7573. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ES5161001449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa69eb1e5d8bb4ec81819d475f01bbcea786a2d8b68e9c936926ff04a6ce837. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:33:57Z), 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/ES5161001450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc504f0fa589b3d717ccdd782bf577b2f2d9a0164bec430f823a24296f2c19d84. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES5161001452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa3f075bed3be9a87ebbe6dbb75c592b866900f477222d5a978669d84357029. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES5161001458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e2373c174612c09ccbd98595dfa0fa2cdbcd161bef8925dadf3fa9fc37b5a2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES5161001460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132cb49003d07b1c1778421ddea45f1cdfaa2605c3f03132e4b97bfb1a1f5ca9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES5161201786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30956ce278dbe3205584df08b999e38615f7fc5af01245f5e1468962f6266710. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:15:54Z), 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/ES5161201787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587d841feda41a9a320b231ded0cc28b9e21c32e2262d6e52ded01e51618a413. 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/ES5161201791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d5af273ad0bb6cd7de0963e7cc20aac82294c93d18441aa54ada7c96efd1fb. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ES5161201793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e2de86702927186ae2d556d7ba351bd173a73b4b2f5145f2f5f8f08f775f0a. 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/ES5161201795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5708d7f00811f6492897aa740e660383c95093e8e34d44259c89210fbfafb1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES5161201796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179934a227510d32a200452527a6773180f045caf130825c486de2eb4581d759. 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/ES5161201798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4a3b0c8150dc392ab7a4321bc212cbeb1b2fd7048ffd52960c2d2fbe8e052f. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ES79A2017009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0952d4a9353b7e9a75717a06b7f1e45b6d1aedec76b4838d91dfd493e0c6e82d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/ES5702201884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1f1b302b69b6f1fdf9c45fb206662960d6dc92ae829f80c4f3f31ea0eef80b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES5702201885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434ff329652812e8ce559ea83bba6181df3543d2e6ad4392b702e10f7c48b078. 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/ES5702201985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434ff329652812e8ce559ea83bba6181df3543d2e6ad4392b702e10f7c48b078. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:30:38Z), 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/ES5702201985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41adb251a9609504b8742d57742d95cac2c2cd29e1fb71a7b0eaa891e5db65a2. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:38:50Z), 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/ES5162206583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b0adcc69d3a125648f6ec745c95602aca18095eb15aaeac03bf73d7fb67c11. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES5162206584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a41c876e4e0a2c1313a5d8b085367c7fcf7106b28f3c5b63181a1adc8748a61. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5162206586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b44cd87d5b5aecb738bca4cc3865e5ff0b2b00101bb6a5add7cfb80ffca28e6. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:46:08Z), 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/ES5162206588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531af6faac82480db3e1c6842b7418c2cade46262933be1e269d9da382777475. 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/ES5162206589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32aba2a6300d189f19ca6ad96c799a843d5821dc923a595531906de87be86862. 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/ES5162206590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cef9a7bf14ef16fb464b0e949228b3b0d4503c33b2fa15eba4f9fcc13ccfcf9. 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/DEUE11818308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92bf9bbaeca14393c30ae0a71f26663eab892e57ff8c683daf0cfece4327752. 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/ES5160700867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220ddf14a3ff0c7540ae7083f9e8fea05361dc29a453a2d6a2911b053f285b89. 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/ES5160801250.
Andalucia Canta y Baila al Son de la Rumba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92bf9bbaeca14393c30ae0a71f26663eab892e57ff8c683daf0cfece4327752. 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/ES5160700867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b566db5131c1bd9d241cf8221778bcf1f5ea1e33402c67ed426afda6a5a461. 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/ES5160700868.