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 0xd6e9837762cad5fab5c8f7b900512a82a553920a402e682fed3babb447569cb6. 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/25f992ea-d3d4-444f-a4f0-31b939509f7d.json and https://artists.proofprofile.net/proofs/artist/25f992ea-d3d4-444f-a4f0-31b939509f7d.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 0xa48188b51be98846fcfc46d1c76d3fc0ec6122ed648dcee753c8a8d4333d7ed0. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZDFP1861828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9028f6a5c3c30a192baa12a6b77cf5d19bb8a353216799441e1e7497c9e67b14. 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/QZQMB2101131.
Mazatlán de Oro Episodio 1 Recorriendo el Malecon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f171dfddec5097c4470937aacfc48f7bea4ba716e5ba0468af745eb45cd4255. 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/QZDA62214207.
Me llamas, Si te pudiera mentir, Jardin olvidado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f726c25952dbd310c674efa02cf5214e34c447dd8db7364c0726cdd458aa0aa. 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/QZDA62214208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f992833f235952ab90c762f379e3059f56696fb752b21b760d36f8bbbc0d3e8. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:17:29Z), 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/QZDA62214209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23bdf51e4ccef74513fc165d343c7dec21e01e0c4fac29c7276964917fba6ae. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZDA62214211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61794b339a0c02462175f86939967c154ecf270971c15c070c485b77c618bb64. 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/QZDA62214212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8dbf8e60cf4824e03598030b543c273702210236d451eaf7b8b93ffc7b5ccec. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZQMB2101275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3bf8d23509dd50db51c1de8d329bd63276e2bfae1c996f978bc193657058c6. 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/QZQMB2101607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x125f528298d1a3ac7d6494d66632e46a11957359e5b5fe9517c0fe1d5f98966b. 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/QZQMB2102015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e652b2db982b509dd5ad9e88fe17a4dc649bdaa04ddc2d8ef0b0f403a2fb9c. 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/QZQMB2103178.
El Papá de los pollitos, Por las calles de Chihuahua, El carrito, 4 Meses
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1449cd0a2858100bcbb06016cc40887921095c6841b3190e28170e4bc3c2fb5e. 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/QZTAY2298195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1ff27b9aec2a449df05bc8e496be6eed8dfc5b4cb4467b958f85ee97b9003e. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZTAY2298199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3739af2793e6e1d995061352be3073b0670b580dcb9ef1dcee81b3c915028a7d. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZHN42398784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599f376440fc24bd5bc5d2ffaaaa5a0784bf7e5728e8215e27fdafbbda29052c. 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/QZTAX2407238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4a71df27e454951f6d57f3872b2bd3ae2d92f3d854b044c4088da135d7bc59. 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/QZTAX2407240.
Somos los que somos y estamos los que estamos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cbf8b49c843c83dd8921caddfd27dd0139a4b76640ee110a924ba3dd2b8fb3. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZTAX2407241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2c0c64f21bb884ae27c79a5007078ed205cc110d6d618f58a1bd1e38562b1dc. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:05:23Z), 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/QZTAX2407246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf641e263298195ce6cf2547d9593e76440f6cb14cffaf51251433cf2e10afa3b. 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/QZTAX2407249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce7376f5596eaa57b0f4d1e44091c6445ae6d387f3e2f720daad652daf1f289. 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/QZES82533198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3764f72b61b861ac1a218aea064f252fd61a8482512a8ac3b79af6eaad2e1d80. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/NL8RL2519540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2159ac3d75de8d80da3e8c631d2ff29b63921c23284eb903d573289df6ee2df5. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:20Z), 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/NL8RL2524943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af377a985031c41b5fa9c640c8381e074333665313a36911accf0ef40f2a121. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:30:39Z), 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/NL8RL2549519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00743f11925ef755db92e08fe279f9410366fd538088b68cdb6536a843bb50c. 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/QZK6P2143735.