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 0x2a4fd55e4cbae9e7090da6d4ca7fd019744a72a86065f8ab4ff5299fa2a8b638. Chain 2 (Bitcoin): anchored in block 953984 (2026-06-16T18:08:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d1e8ecc-166e-4460-be80-6b40811ccf9c.json and https://artists.proofprofile.net/proofs/artist/2d1e8ecc-166e-4460-be80-6b40811ccf9c.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 0x5ab326e3daae070d27a720fa75ce796681dcfc113bfe3873a2572db6988d694d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE5752156023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bbfcbfa94a956e37e062a7f574d4437487832e8f2cbcd91d7792500111fecf. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/SE5752156028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccf63e6fef7717fe748e1120e1dddd92632bd530996e0af1edfb8f4bfef82e8e. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/SE5752156032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2eea1e76e6e72ac70c5e38c92104866907d4e160edb376f81e7802ccabde976. 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/SE5752152172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f32d1d3030f62c15201a3ac93abf0a9c858417abbd0db8ff6a456efc7185527. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE5752152173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba56bdb6141d3228c226b31cbd0858805767f2a81d2f6e6cd10d32766a3e36e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5752152174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87cd769a088aeb98a0ef5e7a8ace6854f4b42ee3d62fe1f42905068eb472fa4. 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/SE5752152176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c896327914efaedba8dfc955e816744e9f2a5ae2986845f3cbf289762a6fff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5752152179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f43de65a2a503667567786cbbcb7857da04095715ee953b0711bc276e7a7a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/SE5752152181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7c2c213a8499f6b4e87fa98e3a6bedf80c1b837ed5a5478c9409ff30c10051. 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/SE5752152183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e915294bf9f1b70fd4889e1b660a4d2b9993622edc01e6d0ca8383669c63fd. 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/SE5752152187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0762884f20eebab11982a579ea7318620affd0ea2ad181ea37408229f86d00. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5752152190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be3395fa690fbe2e0a6b3be09145e111e1e8b9567eac8414de3191652be2b05. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:04:15Z), 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/SE5752152182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7998e0a5c02ed209a1f810a231adf4d02055006d84aad4b134dd7b4a11f02aca. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/SE5752152175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08866437c56e4cd4921465f937ccb783b62daac0d3723442b58064ea24eec5b. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/SE5752152177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf8bb1febcd1648ac454d0ddad6169687add0ac25b24fba4453291a5717035f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/SE5752152178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7538ab20dedec8664df06f0f19e8c50891eade2220a99fb4e1f0088b88ca66. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/SE5752152180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8e294b9fd573aad4f70bc0a03ef69d63303e7bb345416fdeee34e4116ccf15. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/SE5752152184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33826fb7e49cce9e5bc9cc88a369796dd03fb6f158ac2aef41abfcab529d442d. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/SE5752152185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385d15754eec3ce1afcaa37c1114b05cdd2c99e8ee5e720ef1f28a1c41333a2c. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/SE5752152186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a3ccd57a13d9c59b076986e9d644e0a0761ad8d54ea2e64175727ab9ab01cb. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/SE5752152188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d301b67b44ac65a4d665d010187815f74c88eb46af1a8832df56597dd18798. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/SE5752152191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c67bba50ca98cde45c00f98bbd6982e80406843852c049eb1d91bd778505c72. 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/SE6A92083619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ae7f3897e09232fa2ef27d82c1df7b1c8017bde494a58b1cebff54682529de. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/SE5BU2058404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c6f3a83e3fc9d98015089c1208338fc12eb85f3e2d8168d46534919feb5e16. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE6A92083618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c67bba50ca98cde45c00f98bbd6982e80406843852c049eb1d91bd778505c72. 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/SE6A92083619.
Salmo 17 - Yo te amo, Señor mi Fortaleza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9453b6d57d583f073e1bc011b2495eacb71b3fff127658fb541d6c0796c6e64e. 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/SE6A92083617.