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 0x261bb5dde162902121b09ffa933484fdabde1f5772ef5734b2b76257e28790a6. 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/20159170-b1ca-41f9-9ead-c62cc590321e.json and https://artists.proofprofile.net/proofs/artist/20159170-b1ca-41f9-9ead-c62cc590321e.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 0xfd81c7498a07507db654fc2876fbf0301f12547348dbe7b481a98b581d5994b3. 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/JPV501900422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3439c4562dcba1b36c912e8503fe5ec2d33fb8fea1f055b85b925188a687ed. 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/JPV501900429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1025a2745827827cf9ddf4dc89947fa00c52587acf393004b6b91018d45f14ee. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:26:36Z), 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/JPV501900432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3dfcc2ff2544842b092ed9bd50c5cc936e50cf8d1f2b28e5d7ba83464f26be. 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/JPV501400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef40e676358a7ba150b042ba41ae2bef5832f8f6c6b9300b36b0866c03aabbee. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPV501400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc73f372828c7287ba3ed4c75edf747014e4ae95c4b10820baa75409170dffd. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPV501400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49525adbab4009f476a001467bcc15b0d53cdec7c01341604330b88c3131c8c. 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/JPV501400560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e20785ae96ae0e9da16458541808eb9287774a6bed7ca5c543750d85788492. 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/JPS801700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014b3e53ec46e4e5dc92c14974941cc0a6de0c9ce58ddb539d21fafa78321fa7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/JPS801700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f581604465f7425b9d9642c656551d3b3be5a4e7cd27a0d7312144de657fedc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPS801700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346bb6c9235df8d5d59c1276695ecfbe0a080730e5726f3f375e37af45680f6e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPS801700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07566835e5916dfeab918860fb6425f0d3900eeb03b07d5a58e1da054d6e471f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPS801700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8177df6018d7075360c6021191642ae98898b10cdb0979b5666dd7808da5e98. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPS801700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ed20d6cb79e1ea352f932c2e4223f0f932de061185d78bb39abb4a6400975c. 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/JPS801700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa23bc38e7c9ef40b52499f12a9125b1fd01c2e514d70423dc390bf21a9e4b515. 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/JPS801700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf523823263ce76b97d2fe6b7e9bc89f909573cb9f7800f382c610bc1f5fe63ca. 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/JPS801700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80756529328c98f5cf48912373c4b962bb58ad80430cd1a02d84132925619184. 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/JPS801700007.
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 0xbdf30772f61cdb1938311c8d20a146540c0989221d2aa1ea316ba9cc92c6d1e4. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/JPS801700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb81cfdcea54ffa9a7a7cf4fdd6e042d09aec9816946f59e7ed9cd1d403de49. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/JPS801700015.
So Sophisticated Release Live at Clubasia 04.07.2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0404ebe5016097e0a4b32e7ed48ce710de6ef1563de22f7ab3295ce3060a4df. 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/JPS801836532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c57cac392214b1560716eae55c8a95cd27326237545202b5bca48416290457f. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPS801836529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3341f7ad065e8a16ab80b5aed06c24c3750c13eebcd21b8e0d081b7fc9203919. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/JPS801836534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a14ec813d6716276b48a702bf7191f850fd02eea96fa20e830dbdbba04c1817. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPS801836536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6be6f912bbfcfbf5403c686e52ecf83a7fd085aa4e85718e5add69e2f6ed817. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/JPS801836538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809f1ffd1051eb4d27c45bfe4159c237d776c7fb3887cf8d9666c8991b5772ae. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCJPK1906568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954dcfb7980b6d2f996e60e27d03c83289ca1392c05a2c6804feb74c1cf99848. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCJPN2004523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4173a4f55078d754dbdeb4329b77da80a5c5c1adbf9ca13e58f9ef69cb01a49. 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/TCJPN2004548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4e97759cd80cc5fc2dffec7e2214b34d675d47540a41a131990948d283b6c1. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TCJPN2177937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f8e0a6d44b46372db0ebfafe3ff7cf21d829964e872c818119ef3843738205. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/JPV501700245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc992fbd1c44727af33481f8b623a0cc1579e1771108c606f53866ffd296b25. 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/JPS801835842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a339b82ff62c85ade18ddd859d49798baa91238470ad1c69a1c88e164488c6a. 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/JPS801835845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85eb121ac4c10d76cb695ab3203c9349dc98f68c6706c37cce89971f86d37d81. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPY201807035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa221f5beda290185e95fd8b70c55a5b5bc425c20ad0515142f37013fb8f91a. 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/JPV501600754.