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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 0x5a290a4e1c9d55800c68dae7e6f1cdb888a310ab60589d52d6a0871a7f8b96a4. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/459db420-b182-4f95-a978-548cf878ff8c.json and https://artists.proofprofile.net/proofs/artist/459db420-b182-4f95-a978-548cf878ff8c.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 0xfe5086f3f283484ad36d3e45302d07d5059940e56bfdfd579d2def5791a31375. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USY252500689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985ebd1cb68eef28ce527042910385ae5a723d341539f42fdb9bca9d815ea61e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USY252500690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4234670ead1ae319dc2f17a0ef6374abf3a22aa4155c2a4d9953e27cf33da5c6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USY252500691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9daa776e4b8c4194e62bca96818e1e88b42a1c8e02af99ddc127883fdc1ebeff. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USY252500692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6cd62d0b23b0c76179f551939951b1ce1efa8a87456434a9746d8db99105db5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USY252500693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a69b53cde554b2ec7baaac4251f965801cac1978b7b9dd1c793a4e86688de5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USY252500694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3732b4b9c38157fe003fb2201b0eeee282bde6f255ede83b00b2f540986740. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USY252500695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9843957eff84e9397d81f173c8927c699c8a28d17b3ef270ea0e6c95e2eb2a1c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USY252500696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7da5aaa640c366104c91f3c25ade733d141c4a0162bcccbc79b55cc081df7d44. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USY252500697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd766d803362cad8639d02ed53ee28df6d066ea0fd948d4056259f5f233f240a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USY252500698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f803974f62b4175d867b4fa09ffcd72577fe997d33d1640f61edcacae00256. Chain 2 (Bitcoin): anchored in block 960231 (2026-07-30T08:33:28Z), 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/USCGJ1966134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edef87576a66d723d6fb79e53faa5b877dadb654da28e0d00222228bdefde60. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/USCGJ1966135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694914a7c48f5b2eee7f02921e03ef2ffd9eed41ff3080b4a5030b077536fa8c. 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/USCGJ1966136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c6af9917c21383dac6ae69699e90f0acc1c98eaf3b76ced82dcf3e58a6cd35. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USCGJ1966137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35623fbef0fcca88f8707593a4ee8ebff655baa7bbb11b73c79d826436425bb1. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USCGJ1966138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2dfcdce9e7a7a96a7d8b62f8344c8594cc7590aaff0f0affcd46ab385517c0b. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USCGJ1966139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd8b7d5d0b6b447bced772fe9026c622ef24518bfb2c6899798abee5195a3ba. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/USCGJ1966140.
Orgasmic Sensation Through Fecal Ingestion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eba42a93b613063d06f722449206aa3c5343c207f444c8ca2f18ca1c3d4f75. 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/USCGJ1966141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0c04b5ca8e43b0e7d68646474f7a890f4e65f89958f9fa9964d192ab2a3229. 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/USCGJ1991877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcead5982bd7af9d6113c25c4462a4416f7786ee60e1fddf34f492489eccf7f05. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USCGJ1991878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd670ef54cd85aaf511c89a33ae5e9a99a4d0ff28fe3809cc770c08c2bb8c03e4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USCGJ1991879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9431decd724d7f62d068610ec70226064456a28e608af12541c2859204d056. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USCGJ1991880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44656d0ade4850662c3599bc874e606c2ca3c2f2d1ca9825b0479b78f9cc7f32. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCGJ1991881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x431191f14c30c11010a42876a0a56c8eb00e2321f41ab1a6734ed91060332c19. 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/USCGJ1991882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401fb6da5e6d3a66d8f5611cc33b5ab8a8a391a278abda09bd0605cdfc73acef. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USCGJ1991883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1e17fea84504a52af90d6cb63523b03b80834f65fe7cc0d069076a61e079d7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USCGJ1991884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a08e365795e083f57606d4c7d1bf289b6ca5961ce1f5d74e349127461847e9b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USY252501351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd272b0965c074c7f70a5fa49256c0d2feed71e8b456a9dec1cb2302889e5ea28. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USI4R1020564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfcf1af9b75396b0d282a54cf427a7e9c21103e26b6a88fed2f207be89060b8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USI4R1020565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a7e255b78c360c8a3ac5579d65853099e88d2439e59d253ee7fbf09f7da70f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CALB81260410.