1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3c0d262fd56a445774f81e98b63a2ec3f887c3ed731aa053f5d2712cf88fd623. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19eb841d-9378-4b8b-843e-87d6e659a7b4.json and https://artists.proofprofile.net/proofs/artist/19eb841d-9378-4b8b-843e-87d6e659a7b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mauricio Pauly: The Threshing Floor - Santiago Díez Fischer: Plastic Disorder
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 → block OTSBitcoinBlock must exist at that height 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 0x9f7c0d160b99096695ed2000820c3b06a54f53c5e663d3afaa663c374d8bab9c. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCJPS2212821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4edda0c9d98e4aad052eab020617ec23dcaa5730f07e826066df0f6aee27da. 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/TCJPS2212843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad66a82cb4b08e967db26bb4d56330c4658e35479ed7cb9eb629c30bfe678bf. 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/TCJPS2212847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2776cb4d64ae38a42cc2e0830a7d149f4de9e08d3b738a9e74221470955de51e. 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/TCJPS2212861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7854f1c3040c2597dfa011bb016c51b10d2d9d4b7d1d856008df72f005d86c90. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:29:42Z), 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/TCJPS2222314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c65f8cf0cbda244d897577d8d50c01495313a45f4492b652c57c969b1b410c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCJPU2375372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a702684632be95ea9692c76388244cbf15f405423698ad062160c16771b8b57. 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/TCJPU2391588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe3018e0220ba560d5b86b3446d94dc88a61987ffec4ddf5a7bd1657b6c5401. 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/TCJPU2399181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803ef2e7faef0a951af6aa1772da7769332b55efc9f655cd939aad12038be620. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPV2399197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14053b318fd4ce3b7e56a504906e705d8cbc4e422a9a9317129c2cd3007bb4a1. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCJPV2399199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9075d1f44f36d2083819f9efe9fed7753eafe3873a706b0b5b7f9df50093a6. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:55:40Z), 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/TCJPV2399214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6906efd2de0bf853f60756328a3db85518f3dda7fb0a0aaa8af3f67578b32686. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:57:16Z), 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/TCJPV2399224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95926329bfa78da3a61f71f78513e34fd3d656b85bd73d08c33f011e2c082c14. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCJPV2399226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dc2973b8fb1de72e8db87bce527e3f468747ba9ece5e5b73836abfc8a85dbd. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TCJPZ2442460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf77dc41c3b282f720ffc236d0a01cb26bdd421723f5fa0e0aa0f602154c5c4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCJPZ2489778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8894d8777af4d310fa40677d394b6b304d1c82fc232173f460f66135243ac952. 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/TCJPA2441164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e69c879e146851cd35fb88ef72ea0872b46ef3aabff0ee0e65d7e0eea47dee2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCJPA2468923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda42b460a4e79087098d8550412166e6077a1fccf3efea1d0c4f756160ab8acf. 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/TCJPA2474770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d0615a7677868fc3934d400a1f9d4712b8867e0d538b62c156a77f146ded45. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCJPC2445701.
High Low Halloween Night (Scapegoat ver)