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 0xc5470ab780e706136c9167db9040f544e09d2560a14e9a82fe2b33017011ab1a. 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/1fac0bf4-8ff1-4452-b95e-df7dd662a6b2.json and https://artists.proofprofile.net/proofs/artist/1fac0bf4-8ff1-4452-b95e-df7dd662a6b2.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 0xa6392329b45ceceb081abf03fa2138895c76d17d18b5cdd2fee820f138e35c3f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BK4DA2205424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1b4fd66520d622b16bbdf87952376cc551533659b0953479f14f1c106c39bd. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/BK4DA2205428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ad9566c12c95cffbbbca6a7fec34469c4128f50fefbf46d28d8606807d8594. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:11:22Z), 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/BK4DA2205430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62d88813f63b2d4761964cd6d1f749d5d455cef6f6e48db8422886842460648. 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/BK4DA2205432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0edeb515ae5efca83dc1abde1d25f04084d5134b185b6cbf6bb9338757a507. 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/BK4DA2205440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4fbe1000304c0ccde492361f5cee0a76fe202eb9221726e3680a71a5489d55. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/BK4DA2205532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65004532dec35e67813516c04239b9c2fe23e3ea1f769d0d7bcdc27d5a08f2c. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:05:53Z), 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/BK4DA2205536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b265394820ea6b7e2d008bdf7d04cb40d5845e3df18de29238716a816f539e. 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/BK4DA2205539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601fed737669eabe58c5f3dc0c7b58afa914dc2edf8093183319de9417850769. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BK4DA2205540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c66620d8875561715ff75013fd7df2ff1e2f2757f879a8edbcfd7b18396079. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/BK4DA2205543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35624ab8217d4990ea84fcf3a1e987ec2fbb4026344109c9a56f00d8681576a9. 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/BK4DA2205545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c245530bbf8a023ae70591d9ddd2a61a7fdd288480ef3f4752c6089fa7b9ece. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BK4DA2205482.
Toda Maldad Es Reprendida / Estaras Tu Velando / En el Apocalipsis / Dame Fe Oh Señor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2406c93c8dc077f35dc144971e68937a1e9dd795b58193d2dc2c90f71e5ebd2a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:31:31Z), 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/BK4DA2205500.
Es el Nombre Poderoso de Jesus / Como las Aguilas / Quien Como Jehova
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05d02630654e254d735a180a8079cb1ae32807f22b180cb0dd8b7a69494af3e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/BK4DA2205502.
Si No Hubiera Sido por el Señor / Cada Dia Me Siento Muy Feliz / Bendiceme Ahora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da56be9e902d0e92cc71785751ed2a77b20b2774f722ecef3a6a2ed3ed73125. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BK4DA2205508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ed548f81efbcec196c8ff465d080f636937a1b43e51bc4aef09b710e636e48. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BK4DA2205473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46caed3126c3ec471eb0461b7d8acbbacad0545ac6c7f8dbff34e1d2e64dd6d. 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/BK4DA2205576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e79860779dec9f87310f55b62423e33bca8ac7340bb427f9f6630ecfcbdd7c6. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/BK4DA2205577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5fa39ba82d9b4113c42bf5c6fc6b3cab54152ce519ab142dbae8420ab7d4cb. 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/BK4DA2205513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb977f677b512ec7518713d5c04ffaee5d6400bab03b20078997d8374354dfcc8. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/BK4DA2205517.