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 0x780a9ec4cc6a84324e0849f92704d72e72d87dd52fa1c382b21408650c46d807. 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/1ff645b3-8a01-4a16-87e3-ea21e3bde6c9.json and https://artists.proofprofile.net/proofs/artist/1ff645b3-8a01-4a16-87e3-ea21e3bde6c9.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 0x379c34df5cbe53e9e2443a7c202fbbcd335107635228084ca0269a0bca4fe475. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SEYOK1122202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba54c01d5f0ec8614ea4daf8db8d800a36fadfe68b35b9a72e33e12333d968c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:10:56Z), 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/SEYOK1122206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5420274c5f806ccef0e5143da929f938d60de8c146c587ebf2af89e4c0c3234. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/SEYOK1122207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8fba6498f68b1ed8108a345222884a3664983c0f736ca240580447af352f51. 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/SEYOK1122208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f552d815482ae0c7999fa65110a3d2a24596e89608ab8d4b19afa3ee52c4ee. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/SEYOK1122209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb7fb1cde21426588df4e14ecd655f5b1b62b3ad82f2da7b8a2212e34f84fcb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEYOK1122212.
Agahnim's Return - A Tribute to the Past
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f46e3a6cf867a784c80249556ecc612de2866a1d451ed1afd8500a805aab75. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/SEYOK1122213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfe752bb5438db65e0d7fd8da9afa038280d987b67161f766aa89224cb97f45. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/SEYOK1122214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425d059b19db893c84c29e8f9eb0dd1164a73166cf404222142f78b1ecb0c2f2. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SEYOK1519766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68846ffde3ea3b731a690f71b13e2fff47137becf2d39a18d737abc17043adaf. 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/SEYOK2403843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa305ff4cdb94c507d5d3a8e583fa9a78d38541966a0dd26749dc6647b7ba9ad8. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/SEYOK2403842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9327745b72a507a51d5031feb25c821423676abf4fe351514715a77ad14805. 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/SEYOK2403841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedba00626689e4b4a4d6a4c71a67af4b52d5c3d452c72ee6fc4a24c96d172c9. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:36:42Z), 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/SEYOK2416622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25785481874a523d6788e4b3890748ce571732d5dde9ae9f0a82aaa2bab7f8a. 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/SEYOK2416621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09364af112033245a27fa4cc8870016f6f0e7b28e12ccfa35cac1c3e5466dc2. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SEYOK2433794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe670d80624aa380766ccded9450f5bfa2e57a2f5cd8a8b6acd25def006fc7e8. 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/SEYOK2433795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8abfac6e57672ace5a2058d13186bb24b13c4d8d95c8ecfb2efee73ec1acc1b. 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/SEYOK2433796.