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 0x059c1209f351bb83cc626ab26bdfd15611d5abaa02e813b1c0b3041f8f2ff8dd. 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/8465afa3-8240-4f01-8024-eb36d896d854.json and https://artists.proofprofile.net/proofs/artist/8465afa3-8240-4f01-8024-eb36d896d854.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 0x1176e9e4c03f945c8f8eb204456d4c0716c7ecf9f794f5a9bb016bd0e9e5fdbd. 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/QZHNC1989497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeadf8dd9345e1234e72a2e3219240012276eadd603417abf0ae73b5d88003a1c. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHNC1989500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x924302beb8f06fd2a34dba4421ea555d94fdcb3bce6fdfbd81eac96be271a908. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:30:36Z), 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/QZHNC1989503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdf84c5a934810b26e6fb49535b96306e3c69e7d839bd970f1ccbf03de598ce. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:29:59Z), 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/QZHNC1989505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a2f5b83884221a85224409eb3a7384ad57a08770a743954abbab5b3e174918. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZDA72015265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f34cd3abecfd2ee47d44dc8328147c151445a4fc5aa4cd3e7cf6f65b12c989. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:27:43Z), 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/QZDA72015266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e904f86f88d6f0afcd121fcb7a859be6e54673f136846b424a1383cf61dde17. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZHNA2091378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f762d9c6e12c5d32f01f6c58fdcf61bdb739a8e4113699bbac59a02fa9c0b9. 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/DEN962100340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87c314625c0338e8ac16294c45474a29c6d4c066ef5b3529d5bdb0a62214908. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZNWT2155977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f0a5a0c412bb490e2c8fd56850569713776fef8b0d170c4658b42b6a92cb9c. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T11:57:43Z), 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/QZNWT2155978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56198e866e9a48aa44ffd77ac2144ce2bc7e1d5d9c8a7779b1bbbf7fd78ab8d2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZFZ22212881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba65df249bec78329938ecae22f84c5c2791fbff4dec1e182a0f90e830ec95c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:57:32Z), 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/QZFZ22212882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f16e117d5a31e375d33504e1fdb032035cadcf65d922db41cfa5183f73e7bce. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFZ22212883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152c63045fde9de208b808af233cbbdc29c0d14a3053b6fb35146d43ba6b1ade. 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/DELV42101295.
Random and Emblematic: The Sound of Space
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e333f0149af37c938350a05320907b0adc98b45355498153cff4b2f47f919b. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/QZES52308003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53b12f983e670227921f5324d6971ba496401a5753192882dba7f8653c53410. 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/GBAYC2300924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4408d1a5e27830486891d36f35d0f49e6d47ace3817d6c49742c468b875b8ec. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:48:48Z), 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/GBAYC2300925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc4ad5e7684c78dcf71fb15217b3e45f04b75282cb166cdfdbed0a7cb6fd848. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBAYC2300926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1e6b1bbaad54989f949e375fe0fd951d1b895eb0b56f4e8e8fae5acdc4d9c65. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/GBAYC2300927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58af20d5c089e4ef0d5618c191cc0ccaeb9d807c759cdd09959b8e4db09ffa0. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/GBAYC2300928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6bf250407769db2657dffa7a46b5347eb7869605bd92374df0496679f89f0d5. 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/GBAYC2301749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e09436bb5a08b4715bcd0e951af2813c1aa1bd3cad66b303cd1f842a49c0946. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/GBAYC2301777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7030a3007761e504e0810c53369270d904d5d7c55229ffc878cad668237aa3e. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/GBAYC2301776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fbbc05e54029f95ada3c47a3c89ba60779b1311c2c8085c615322a1914f5fa9. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBAYC2301774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1362a6dd0be88eabdc5b13e7f62ef86f1b0ee4b3d391056408fdbe4611d3f3. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GBAYC2301775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80816523c81770beb7d6a94b3199c543e4350517b8606059b4574e4c50ae195e. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GBAYC2301778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbc75cb7a48e3497bd36d5e311fed6d69cd7d34c23a7dfb11956ee2cd22caeff. 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/GBAYC2301779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dbfa27e499e7da88338e60e30924a3ffc9711fad43a64f4a04aabf1b203ae1. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-17T08:55:19Z), 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/GBAYC2301780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909cf7c001115f84a5512c38c54bd4da4aa738bc3dee1cd3be20e5986172f1aa. 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/GBAYC2301781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f048b388d01733616da83ab35f64abe02b9ee894dbafeac144fdfc133d7bcbd. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T19:20:29Z), 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/GBAYC2301782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1d4bcaca1e7faa07dacbf6e7b53868abf4647c59c0a8dff240288ae1b7247d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBAYC2301783.
Tribute to Egyptian Song (A Blogothèque Take Away Show)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7f937de74891050666bf387c6060ac35ef9f618a141e8ef5095485ee12d2ec. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GBPFW2400839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938a3bbf53c4626eab524b11f38a12bab1149fbffac10593da542d8db173d475. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/GBPFW2500083.