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 0xcedb3cad335735c6e766046fa820510bf3d4cc7394089b43cb4199bde7196fac. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9139dc6e-9100-4c74-927e-b46d766e2779.json and https://artists.proofprofile.net/proofs/artist/9139dc6e-9100-4c74-927e-b46d766e2779.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 0xe33af2fd9e6e1923ebd2841ee3dd9eb30493de03e1023e5e017b426823bea4d7. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/DEH742301924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac20063529d8324753057a1491005f0184ddf1811dcacde2ed1002bbf9e43187. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/USLZJ2373413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d336d9aa8d72371db5e64557cf45bbcc107fedfa090d66f3946fa375b9b45d. 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/QZK6N2348196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a51f320722389e5870564724e36fb6da253ada785564db4ce618bf086e05b2d. 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/QZS632331236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebbf643d78c4d3e6bfecabfd57ef37f9ab097845e739238659571e570fd09af. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZS632387159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9450b0f5b2a84d8bce4da33e1bb285b74692a5e4a76ff90ce77d435e10631c0d. 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/QZS662285577.
1. Sink While You Bathe In Hallucination
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2625c4659f6256b7984011a4275868734d3e850093576c9a635cf641ecead8b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZS652205904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3516c7f6d44b40c8695960b30338366ab5bf71bbd2926df1aa335b09db02ac. 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/QZWFN2393646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5353974653ad07a375b960716440f4bbbef1b5ce6b7e107876773da72867a69. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:55:13Z), 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/QZMHN2470369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce69c449edfdf26621e361b3c4e03a7a5f75456895813692631557424a6d9a13. 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/GB8KE2414507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eff611e01485e8a54c3e2c01acb79b39c34e16ce4e17c2857b0ee5c5494d2fb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZZEB2330133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fd2430133a3b6bfe73a17b4ac0e7417ae9deefc4a13ecc8743b9405da2c598. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZS652255670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e2f59697cdd32475dd79a220de84d9f889719df7b18aa966808ef0930f864f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZMHM2457436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48081565b9167c6e18ab6bf7488cdd77f8107f598da505d98273ad6c4b98bfc3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TCAHX2446909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe61f58830d2a16428568ff3d7b22624eca2ee65cdb801b467ea6cda061f5b90. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZMHN2334362.
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 0xa471d641cce01bf918ce9f2e3bb53c5864f85fe85bdbf9efaaa6f34805afa050. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZMHL2280098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f453984b589d0bb223a0642e35d4039a7f1fdb5b794bfbf30f4a215bf225b87. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/TCAIQ2432585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb4c24079ad4af24c92facdfe9017c74b4e3f4f5145e143968f6cee38a5481c3. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEH742317032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356ffbc142fda331467759bbf26178b0205ff6d0bd9ae2fad5cd4b08de7e4213. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GB8KE2416752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7025875b8f9194d8b70b185fb045c935871657319d48d9c4ea00738c83ae7731. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZS642358651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cd8f5545cce1e1b239f422287dee8dc72ea4aa63d1a754ed66a301c5cb6292. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZS632312463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad06d764dc298c8d98ddbc97340ef53ace09ac40880accf0fcaca7de1ffb40fd. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/SEYOK2432409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822f71b4ed75713c05c5292843d4bd1d28a919744a45b5036369e407e492c5dd. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBENT1692142.