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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb099d80b140cd14dc16ce64fde20e30115a3161517816c6e682a02c4555353b9. 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/2c6f5f8a-93c0-4d93-9ae3-b332386d00fc.json and https://artists.proofprofile.net/proofs/artist/2c6f5f8a-93c0-4d93-9ae3-b332386d00fc.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fa948270e1a7599d0e0c8eb94195c2d0d3c1614c4db988208f04a7acd60a2d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5IB2271121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9187490bae0638f376fe88be5d673e917307955f704f72e7eade3906e66834. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3283770ced49c4f7ee504acbc68f902662c1644b85b28b34eea243c3a420f80c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbef95d39a0f253489369e0a966fd35131af0b1716bb70b954a6ffedfa52f666. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199a3a51a1d393a76b9c5cf504d817c9d428a23a7b21054d5169a77c30dc06b5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde2413484a677b0ff471360071765ddc3d1a446afeb144b2d7496e84e68431f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2b428c1b33b5462c5c6ab4720c49d4f059e5a21c1a1814a5315fe539da5623. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab2c38a3f0871e7a57410006902afe84b6ad3600183010b178593591a55c3fd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87fd7fbb4341fe3dc5cd95fc66ac8f6775d520be364f01589224c0cf09148a5d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d297a0645367ba59a33c9e5587381c5fa01084a748efa0ec8a8f6a4e4ca345. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5230e28cdb7c6d831215224bef6dec054e8b37480a44bed762f6b1fc0d702697. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d08a7daa5e982ee8fc7a217882adbeef79bcfd4d001591be34eab260afab47. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6288d05bf2d51282c93de7d99dc72b4a4cbbfe33f927a49e568d6b3d298f2a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aed5aae8e026dc9241a264dfbb8e0258f5d513eaa7987ea03d6cd2edfbfa91e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501da50399e13d35efd3523e4b1f20a8db932448622eea40903f1e98025296d4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b56556290ae96e3f43f2634ee767b359c9fc77c3c56f8e9c18a32c2c5ae2caa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc180377072e99933b88247bcc4895e2389eb712608b483debe53fc8f11470134. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9813e9d07fd3926b1d07e2186b7e54eda00516b00f64762c4385cbbcac30656d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20606ed242ff49e021dc2a2ab58940989b2b3ae7caee3cf44f26988c3d2ec9cd. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f67813a6d0339d9941ee0c89d8cb7ad914da0fbb4fed6d4da6884a835a072ce. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbf5a691544808d52a0b5d2ef32f93c8c7bbd2add96423aa6198ba15d360998. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e734e21f02a2bc23e4ebae3574857e366e5d23a224d45358af58eaf89bda2df. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb592fb860d181a576eecf5babc940c8eef2e7ae81623e630e957a738c567cba9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410163.
Flowing Motion - Translucent - With Rain
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0051913ddf2fa2e0cfdc24e52557d1efedb1906231531c2ec3ab0bcbd411ba51. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32f0cc2abeef2f454b8a3553b7683cc522435ba6b1448240d71cb386dc89c98. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60dd5e637a43e958c6c391143c749bbfadf41f1c049c80cf9920b3eef2ff84f9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa068be43bdf8bc6193691a9ea093f703feab97fbbc561d3e0a01cf8c1d059a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544689441c78045d0c0943003aeb828e81e7765f33320439b1e31235f9b1edab. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x816bd8835bab2fbe84cabc2d35d9cff3d2305e1eb63cd78e262369f71ed73c4d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1eb10ebfdaa5e33bf59160b9a54fbbfa138fbc70cddedc6d7d3f5aa465d2fdb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/SE69Z2410184.