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 0x27ef8f87d136b40c14abfe44f8fbc1f86146ee48f173235b54148659798513f3. 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/573c4ef3-75fc-4e38-b5aa-7a258ef407b5.json and https://artists.proofprofile.net/proofs/artist/573c4ef3-75fc-4e38-b5aa-7a258ef407b5.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 0x4cd84c0e1d2ed0c7800f086f00b26109767eafb5786db04ca28b64b9a69f545b. 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/GX8LE2370483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449a246dacf258654c93d52735df24919a3e5a931d0a22bb7f17de2342c14872. 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/ARIXB2300808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2688c70c20d0e7c5aa76f55f42ecafe9fe18dbce3e67221c38a85c6096d414. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARIXB2209874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7d77c451d0ea7d5336759f1240db0f81d04cd6138124963cc7363889d325bc. 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/ARIXB2208432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba276732fdd736ed66c1789f5c06a06b68e497e378b254100aed4ed8994e47dd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PL66V2208905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f455755b5d7e5fd509ceb86a8cdc590e149aec14e8a9196699697c637237c7. 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/QZLBC2306084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2427e32e194a7b1ca21d7ee3c65bb9f24de6fc044ad3593624e306c418489a51. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE5XG2347210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7488b15433eeb4f8b0edf75ff34ac8fca720fd26134a051b5dcaf512d616ed4f. 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/QZLBC2301282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce585ae4ce1778be01366efe43bb99a1f63d423a1cc441f349148f5c3c15e9d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZLBC2301281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67311015937e037bee2537a4cfd42ed3f82f1ab39a2d909a141920bdaf0c415. 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/ARIXB2300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39575e50a8d7eeb851969beb7e7efaaf3d0e2e6baffaecdc184b5258749064e6. 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/SE5XG2273001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6efa518a8ac1bc4be6d5c69fb2520c8a92a7aad884d3a5a16c11d13ed6edc02. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5XG2273003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f6f9a7c3f86ab390548861df9560ae5cbbff164ad603a43822757a431b7704. 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/SE5XG2268608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276f2077ec1f643a5f074c4396beeee8b1d9695dd768c44762038313e1818ce9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE5XG2268609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2af40663af5247974b45384726fca6ecaf6a2bf9e6e82f29750a9e014090baa. 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/SE5XG2268607.
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 0x09244a10e96dad33294b4f331e58f54ac48398bf33c5cbb11ff00534803899f0. 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/SE5XG2268601.
Under The Influence X Renegade - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d25c0fdd2416eae4df6dedce9dd9798b8e8307a3df0bbb8f9fdb4d3a15075d. 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/SE5XG2268602.
Under The Influence X Renegade - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3f6024d96df86c340246c41733ef5c5036c68aef17fe01e38214006107df72. 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/SE5XG2268603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfac24e5e3cb6da3b2d9a61d9441bc84d87f16ec6afa6ac4ac229a077c7db2b8. 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/SE5XG2268604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3c6d7987ea318d4969ba41e06f6d7a3479fc5c65e5b29bdd8e71754e6d7b4d. 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/QZPLS2258812.
Somewhere Only We Know - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486372eb98432868848b1bf69c1b8b88a40d57ffb053498a3da472df06c7e3c4. 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/SE5XG2268605.
Under The Influence (Body Language) - Sped Up
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bec29271859cd5165399a8793355031b3ec7465987b30923421eafb554523ba. 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/SE5XG2267102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a3d221b2ce9becc109ff4f391c03933d2b5b8a45667dc7348622bfed1082a6. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/SE5XG2267101.
Under The Influence (Body Language) - Slowed + Reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe339dc4ba439d3dd1a3ef1968338384ba47e8d8b43364c143d2ffdf8933a713d. 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/SE5XG2267103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf60b4bc306863a6eee2541d15031c3f0338fff2d5372fe030ac0fe580dc0f7cb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5XG2268302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9623aec33393b7a5a8d5aaff4400f9b65d093e2078ba22163bc6ccc73bc9877. 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/SE5XG2268301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20792eedfba2515037f55d072b13f59fb7f82831dcb43c7980f421fbf977a4db. 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/SE5XG2268303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ed612719c692ceab736803aa150bd7cf411874b14d742d25042b5d74ec7ee0. 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/SE5XG2267111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73dc391d5ccb51baa1b7dd31106fe75f968073a0966758a8a2ea4d59a50450da. 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/SE5XG2267112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc728badf754d91931c8780e263f6fa314876786d20ac167370071b13c401e594. 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/SE5XG2267113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb57e43467e039ab0d34174ead1a1cd9e181b1d0793515aa540dc6d7e8b7710. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE5XG2267107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fada8d23b8f1bd858166d0c17f17cf6858bd153b54a38752953183873e1d3e2. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/SE5XG2267108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108690c454077aa5b186b7a1010ba955f843c982e062d7d5c47f308a07e72727. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/SE5XG2267109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0cf28bab09a0fa43d3d5abf191c4b8691f265778a3a314ec78b4802262a9a9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLRD52235010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5df8c7b3b75cccc5b85780d63943dc803d634889f3af455c0a3ac9fef564d9. 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/QZDFP2011143.