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 0xafb219c2d0d4d917d29274aceffe520fd5aba812cc1f0d989c94882bf0908fc6. 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/b833e905-3a44-461e-ae2d-2d427a917bb2.json and https://artists.proofprofile.net/proofs/artist/b833e905-3a44-461e-ae2d-2d427a917bb2.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 0x97a50a78ac9952a7c033f04e90f7859a94a4a0a0e46f7a4c6f527c9236fe88aa. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/JPC841700602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d1670a5be7231f9c0b3e35734cd63771d5c40eb03ad715b1bb6dc70b30105e. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:26:59Z), 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/JPC841702701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5726e371d062de7d115ba46c2f39d5c6523b7fc18e1efd4d58bebd433483c2cf. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:05:28Z), 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/JPC841702702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x755c486072fa3beb898fd35cefbaf38f4a51e274ea50a0febb061265092b6930. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:38:51Z), 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/JPC841702704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c45c90a3461a1a8b1fa90f341ef4edeabee3d5af1701bbcae31a29bcf614a1e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:40:59Z), 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/JPC841702708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07286c716cc0fcfac19796dafe3bc2a0b38f18541d3bc60ccaf98558af41ff55. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:34:19Z), 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/JPC841900902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c899d3969b9c46beb0cf6004cc00ff73a105d6787ea1f97f6c80e1cc2e0625. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPC841900903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf573bd7883648a619ad7c9649b559040e94c10417f7dd8b6fe78bd0cde9c1234. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:23:02Z), 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/JPC841900904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d2aac9aa78915d9c3d2540153c8e7b3cdd721e62c012b6dfbec7c2ded86817b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPC841900905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a1bf81ab996f121ceec98fd18f8b9db7b560102db8aae545aa78781a6c80aa. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/JPC841900906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465d33b0660f275ade187a3169a2c32c4c087fe8d84f5ba2cc58e21299cd3dfa. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:23:10Z), 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/TCJPY2348091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16837167a318653bb7dabc360f12b1b11e235ab789c855cb367b140fa21e0c00. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/TCJPP2123408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bd2410de23f3f362aea0773627eb289ccfb7c398dbd533d20f27e34b0b54d1. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:02:21Z), 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/TCJPP2160092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f86b3bb9b32c0912669ba9faba6d3c6f71ff933e6898f5143d661f139240184. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/TCJPQ2291314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb6a6a7b31cbf4a429955dd95bb2616dd0e12a4d529eb88c3947cb68f79d27b. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:33:53Z), 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/TCJPU2212342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce241a3a44a4c1fbb8a796849395a797d95b78594928d8b3d5628cda41f7f246. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCJPU2212355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25407ca674b61a9af8b353ec741c6e17675cbe955388a3c224700790956dca9b. 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/TCJPU2212362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cf4446459689dfc016f155c566f7df6647d21b2417bc359d5f76ebe5861f65. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/TCJPU2212387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71d3889b5320cd0486f4717f797e8f3220d92bc7d7d672fd54141feeaed0b77. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/TCJPX2353771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2a4767cee89be3cb81372395e701525d96f24a145a0d09dbff6605f68c68d8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:48:47Z), 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/TCJPZ2488857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d10052732950ef96187750d389539fdb35c6e7a2ca33a39155378ba10e21477. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:25:42Z), 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/TCJPZ2498368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b769a3c424514babc5e0798f778d8ffa498bb782ab23e34f2f85e05d6dcc510. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/TCJPZ2498376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44e1b5e4b693b5dbc8cac35223b0d9572c9d6453de73a6d2b85daab20534967. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/TCJPZ2498381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f34493efb082971b089836bb2809359aa5597963c8a7a09c07aed0997d1c847. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/TCJPB2442535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb299a7c1dba254d63fa0bc64374baf6be5cebae90cecabb29cb05c33f76c96aa. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:27:19Z), 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/TCJPC2445616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832c19cd9bb7251c52e825ba569c7a76de6889b3fed7f81f24a76de04737a0b6. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCJPC2445671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfc1f31a62d1ecf5556877d183bf1a04f942fb44bafce61f8a00dd06d10a55b. 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/TCJPC2445680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4143ad07baa7478198bb5f8701a5b24be46ce60da833682d12a8940c7054243b. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/TCJPC2445584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a3f129e9a5573cffc59e6e56638dced55e0f08454814d928382cb34e5a5963. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:45:53Z), 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/TCJPH2590299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45d2e3eefecceb0f8d86d5750488473cc0ab534111926f65c66ce2b67d1f90e. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:36:19Z), 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/TCJPH2590418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf7c5241fb98bb35e1c2bd80a413b29d0ff542436af7f2d5ba923b74e048c71. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/TCJPH2590214.