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 0xe900959317a4ebc98867f85ae585d483aca4796bb74e9d35ed7a4294a0dbe4d9. 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/e8111b8e-dfab-4cef-a970-9b1e38f4f976.json and https://artists.proofprofile.net/proofs/artist/e8111b8e-dfab-4cef-a970-9b1e38f4f976.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 0x6e4b28b8edbc806c2b3432a456ecc577a5e32eb7b84f54e6c459410c279bbac4. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QMFME1393158.
Germán Valdés TIN-TAN Canciones de Sus Películas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f47cd54f26f4be295b652a9cfea9d4a860663449683d40d01728db0de225c70. 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/QMFMF1425998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa078ab9f59b77fa2519c4c4e2d252980022cd91861df01beb4e29559596f3267. 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/QMFMF1426004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a20e4aea674d45b3474bb37c44ecf50268cc5a739c574dba78af1ba5cc2eac. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QMFMF1426007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c3399587ea83ad8a8b19a1668ea4660db2fbbc1e37e658488522a3ff37e45ed. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QMFMF1426115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a909073dcd11b086b29a31e6e942b00c26335bebacf92be3eacd1621abbd0ca. 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/QMFMF1426133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e486b59993454369acf97460bbf536c47360aac35c87d00453d395e73ae9af. 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/QMFMF1426121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bad33f3b7374fdb8af6d46e322afde82642a451f350f78e78417569bbde9b5e. 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/QMFMF1426126.
Germán Valdés TIN TAN Canciones de Sus Películas, Vol. 3
Germán Valdés TIN TAN Canciones de Sus Películas, Vol. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f47cd54f26f4be295b652a9cfea9d4a860663449683d40d01728db0de225c70. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMFMF1425998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee572c1c2f36ded52166d23ec30f53b9e92fcf1c38cb2fbd17e97a05fe0b230. 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/QMFMF1426012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009a68e8bf8650b3bad4f87727e6246538cc5376a56cf04da117e3f4bddff62. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:02:10Z), 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/QMFMF1426019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da29be7a5b986f77b2b640eeda5b08fe3811f103aa8f71c36adda059431c74a. 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/QMFMF1426011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee572c1c2f36ded52166d23ec30f53b9e92fcf1c38cb2fbd17e97a05fe0b230. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QMFMF1426012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c0f799fabcb8008efd77e6e822afca4c82a23cd3096ee2839c2928edecded4. 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/QMFMF1426016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd009a68e8bf8650b3bad4f87727e6246538cc5376a56cf04da117e3f4bddff62. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QMFMF1426019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f42e532d07e427071cf5bc93eb1b60ece71e532af47975970bf701953dfe66. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QMFMF1425988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c126986efd5e4035a65801a62814ff702ea58b00e1ea6771609cab918a678d9. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:02:50Z), 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/QMFMF1425991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccacb3a375d90949a7e7a039b8d8ee6ebd0cffa8d4baba6be87b49a4477b564. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QMFMF1425992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b8817bbfb5cd309fda78b6c1f474ebd984bc38ad5e7530cb6e51b8adb49c82. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QMFMF1425993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3fa26671cd4de2318e88447cb7e01e1bfd8c42be5f0d57a590c1d9ee5bd26f. 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/QMFMF1425994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f92ace32735bfe06a73359eb41efdd5c67f0c02b6b207b87479cafedc128386. 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/QMFMF1425995.
Germán Valdés TIN TAN Canciones de Sus Películas, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc676aa59f6d9594becbc85539bfc208c56e62f07a4b0dab7b776639abca0d4. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DGA0P2463883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d99d4705fed21ffe8cef4b7ed280499f14c2d4605635c7d7ab229f0a59874f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/DGA0P2463884.
A Margarita Debayle: Poema de Rubén Darío
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0aacc9876cb830651be74e855cbfd79ffd56d20c1338ff3bd49cbdc124565b. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/FXR752504178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee438ff18b66478c050e70189f43272ec5614dad9ccb123d021bb8a7a37506f5. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:53:42Z), 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/FXR752504179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaded5afdf004b95a8780934f9b9b7d619a42d2ce630f53bfbe757d57d1c44ae4. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FXR752504180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa506f16b50f791c39026b3d106a95ef5e0a60344a23d39e91550edca170c9e07. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FXR752504181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc83ce5529a3efb1a985600fac5453bdb556b72fc691f15eb406e76be2432bd. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:29:31Z), 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/FXR752504183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f9bebb5c8d683eff118ed32d210f587c4bd342d26b0bc5299e2aa33164bf4c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FXR752504188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ff56ea5f93c502525bf6e65e6298220859754840b3ece234c541ab5a40174d. 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/FXR752504190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829cbd28eefbfeef4e101cb3da39b069ba276b6d3155158588cfcc33215fdf82. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:36:49Z), 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/FXR752504193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0476d24f90205a03fe5731e6f915281974a5a2c128ba7daf1db14ea91b03c657. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/FXR752504194.
16 Toneladas -De La Película "Locos Peligrosos"-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac6b3e197e112ec6e60e7c7eba8cdf47810688a5d6daaa6711ea11e7aa6a163. 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/ES5832340157.
Perdóname Beethoven, Perdóname Chopin -De La Película "Locos Peligrosos"-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c7b0f66ee734cc249f86690cc6a3145952e335748f89d1412c61ff4d559913. 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/ES5832340166.