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 0x0868713005530630b6f17d25cc7511ae801ae3a17033e4e9d3fe31d41378276a. 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/6e1d59a1-ad83-4eca-ad9e-69a70426edaa.json and https://artists.proofprofile.net/proofs/artist/6e1d59a1-ad83-4eca-ad9e-69a70426edaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
First Day out (feat. Leek Gg, Cash Cobain & Melly Migo)
DoubleM950 (Bricks) [feat. Shawny Binladen & Pablito]
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 0x17768eceacab48e5033d5fcbe13752cfc1d1d9406e39feb02d9fb3b040689bde. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/QM6XS2510905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2092bfffb8c6243d6a9a6211b6940f96f1d912de140c24e249b8e6fe3d18f4. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/QM6XS2302878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7310c08d4b1948dd8fa305ebbe9c988621024ce7af284664b9f30740a80ad5c3. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QM6XS2411744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338d188423b2b0fd1c2dd2bcbe0a242ee79a07d87117d6338e3ddb85076758fd. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QM6XS2412434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d2d2b8acc09791690cdb28184ef1d74c7d51d2eeacb98e8f5b009fd4600ca3. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QM6XS2412441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70d580bece7243153fcae6ae53126aa2287419faf2cf272e8c3693a8c5dd192. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QM6XS2510347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015a4755f7b8ea3331c4e3761439ee718ce2fb6a81d0bf67119d326d76c9db51. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAJK2570459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b3b2cc18233c2c9533554ac1bc74107b3e617d63255ca8bcec5336b67c6f66. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TCAJL2520607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995e04fdc90ae1bac48e3291aabf8203a0e56e52986e85e55b29cfd5629cf3de. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QM6XS2510551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e65bfc0a29d872ca68ebe42e2219f05a4821e3c12c08ab2360e876e04a8712. 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/QM6XS2510552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95836f58e718ff633ec2c100a56bd631bccfe9c1a3396a3abdf7cbd3ebf00f1c. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QM6XS2510554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cab7e761002d3bfa8a1821a7f471efc5e1d9272de01e5a20caeddec759dcb2. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QM6XS2510623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5f42ed8874f940425b1b1f65dc77c0bdc61f4d9a766a8e4ca024dbf0b4b606. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/QM6XS2510624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41614fcb8ba3575981f4b66307a1a615331e49d91c9261b015cb501a040893d7. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QM6XS2510625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398e6cd2dfb3c6ff12113ef0339813f7e52df4b1951d4ca23be8ed578a37e768. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QM6XS2510626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cb59e1aa3ac3462f897e31bae32cc786d25bd968f25b60c0cbb93e91e887712. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QM6XS2511248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7974c70c52583db5bce34a3978d3fa8be0265d5746c8b804483a931798bae00c. 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/QM6XS2511249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4894f62d6c3412fcdbc621f1617633bab38f21f1f9a8b2ec59542fc2f74946dd. 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/QM6XS2511251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce3fdc3da66cc4327a30ec98e5262fbc29d23381de7f63ee035d7321bd8c6bc. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QM6XS2511254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a9354679d10a1c3bd1f06bdb6f0d2c8677381c3db102f0a96624df46c64157. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QM6XS2511255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631f502c758033aa77388ecb8d2295b79f46da3ccb7d0c20f7dbc25404cd3c59. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QM6XS2511262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfc65d7bf21181934c7782f9e2bf8955aaac9c17ceca954784f48043d2da27a4. 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/QM6XS2511008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0021c49eb9aac6ef986ffadf4f5861435eaf51528e308cc48c5fbc98a0a4dc. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/QM6XS2511352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9501a2e89807f7cb846d81d8210285c2f3e86d2dc928bf5384ce6725e3be5ed. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6XS2511379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8233f4383fe19b729a9aa435af4d61505ba276b58c42c4c515521e0cb8b20db. 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/QM6XS2511740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2307e19ba96a95486a28c74f189a90931969463123b10c20064f345f63cdd77e. 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/QM6P42305646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e01bf82381d27c20304899659d62b29a212f36dfeecd6409bccf65ef548707. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZFZ42229715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c484ef80ce045b74bce23cd976f8fef4ce05e11ba7d0378bf3c2133baf9ba5. 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/QZFZ72366528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719125874587d7cdac322e9637a637f596dd54b0193aaaa5fc349cc1349a186b. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCAFK2183288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58ad7ea7e4649393442e1f8dd7f1bd49b34f36a20b1adca3dd2c6757693d20c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/QZWFL2398506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d25a685697e42371839221677a0490b6a9bf4eb01e2ef1ed0027f00c8a08a53. 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/QZHN42242448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2ee9ea29f5f6637e30c74b2c45e660be408ca86c4adb8a4f7fb4ef38fad67e. 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/TCAEK1973696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600e4c7bfe6dcabe83d22cd4fc05b9e655b14d47835b4571d1f84781f6ade948. 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/QZVFR2300784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5c158a83d346137e5f51dc2101ef90180522388a8bdbebf3d40ff1c5e105f5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USZ4V2400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3568356c3ec7edb7af93c7dbcbdc53f1922b90c28bf50cc376ea983c8132d6ab. 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/USZ4V2400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00ca570a25bb1bde690885ea6604b8833cb2c2ff0e97433ca43d103ee11b62c. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QM6XS2201106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709edab7d6775003abff131bae82fa2fbb721a8799ffa62accf58829d8fc1769. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZPLS2302900.