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 0x1fe439e6abcdf73078f6fac849c7592844f6a46f1b1ae4ce0ad7ef856def7759. 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/00338cba-7ae6-40f8-8d2b-2b188e6950c0.json and https://artists.proofprofile.net/proofs/artist/00338cba-7ae6-40f8-8d2b-2b188e6950c0.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 0x7d9f430750b2f24198eeaecf80916fb2bf709bcca77880e39fae41fcf7d45ed3. 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/SEPQM0614414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4e0da579c57ca2dd9935f6a2e30c06284648f670e0ebef64728a637e2cc1ee. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEBGE9502080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa648474779e2f11504991001dacf7b1171346561cbbfaef2bb6b7a5b7e4ce65a. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:02:58Z), 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/SEBGE9502220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13408d78f4dd9ba68b83ae3888b77bc1c89c7ba30aefa052fae812028ea0a7e. 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/SEBGE9501010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013f90cfe2586ab73eaaa2958b1921dbb38b736cc03f12c7571913d56376056f. 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/SEBGE9501020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cde717d91f6a1c92896eec454966f4e55b466dc588214c2e2eb183da32bf80. 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/SEBGE9501060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09fb21770e9ce1fc2fc2fcb3f023c0f23a957520b6b8b03ab576745e139fa3b8. 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/SEBGE9501070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa384572a4f27c7663e9ac87979026a715c00d882d9c5ea70bee9ee9ddd920b97. 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/SEBGE9501080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c263f7221ccf959c1d021567984dc133c9981bca6b6943c8bdb2f91a2124833. 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/SEBGE9501090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd487d9576508c9c412f8832ad68615102b51b24f3a9d3874a89aae8e399c7c. 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/SEBGE9501100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80b9e6db21b91c193928545388ef202009df8e7e66b2f9c3b7712c6216a2a7d. 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/SEBGE9501110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7559b667b0f4b3c89fcc10ad4803f2e94fe3298bc6e4da30085dfd00e2025a79. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/SEBGE9501140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edcce7058c604ba7a974b730d395cf27141b7c669e272c8becd10684d924a9d. 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/SEBGE9501150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369cec342273b76c6b50f186f4ca468c8da09877c56c4a034746b43155e1a2b7. 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/SEBGE9501160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eadbc176a2d95d147e25f1802790ad627972165f27b9135424f30f063cce6b. 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/SEBGE9501190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70020ed243011255ff0efac2d5255393c67a084f0b98f0a06edf2af989d827d7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEBGE9501011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ae5ac98b4d36840c7ceab7dd3d34a472bd04148ffa494111a612431c4704d8. 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/SEBGE9501021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8386362857f8654e8a877dd2d29264d4cd65820affe8cf391cfca00ace6eb1d0. 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/SEBGE9501051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4db3bce893ba8ba0e74545f84f131ff448f201ff3791f64274589f888586ea. 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/SEBGE9501091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d0996636fee8e4d8dce064a7acc53ed087b155a084e798f4e4ae7155dbdfce. 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/SEBGE9501121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fda6cd6a00531ddb357af2520c40c3834ff9b6cb00be855bc4f59d1e214893. 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/SEBGE9501141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a43c34f233748d37a26a11e0b7dc3ca0b8dae917da4b40a55458fbc83466d3. 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/SEBGE9501171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe5379f26d7d99877c68c8aad2836dd00abf43478fbf87c4b4d84b6d33120c7. 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/SEBGE9501181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b10cd090c31641448dc035e145017de9617b75bd0d40a4034e4ecb3d4fdda78. 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/SEBGE9501191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6b549f68142301b101c4843beef80afd7cf4b0cfa5f293f962ecf2d12c52d7. 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/SEBGE9501211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d387923612969235721b64560f1ef7ed1908c3bb60ead82d1dae4f341fcc418. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/SEBGE9501030.
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 0x080f899b76e0350e1f80eda94a4637bdc17b640d9b409b40bc8eeab3723da463. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/SEBGE9501050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ba448b0209c12a8e4544e6f54df719ba44b4330c10eb160862263fb13889c9. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/SEBGE9501120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40dce672911ed3f10c2964de510b815f931697633904487148ce72df922affc0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/SEBGE9501130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad163e18aaa36cd900a5db0f2e18e91657e503d6b795d58a3f290acebe4fd30. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/SEBGE9501170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0332a16dadf5ce848da71b54b4adac55a2dd806c6b6ce3122465d5f0f0e4d7. 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/SEBGE9501210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d638fe54650d0b7fa48bec53b5bcdb2d1953f6caf9ed4403d779d2e127c40c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SEBGE9501031.
Jag lyfter ögat mot himmelen - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811bac6f51da1a6621670470d7ae79e27cddbf27b3d0f8301d1ee4b5a2c7b75b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/SEBGE9501041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a4325519a4e42ef272d530c03e8b72a176aafc6bda92803744f238aade7fc5. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/SEBGE9501071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73662b710491a870d4e8988fce2c08750a85ed528d194a86b0a5eef2666541f5. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/SEBGE9501081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d513e1ff73ff06bc2611b6de688c1e65ab2ad7c7592e7b20e19795799c099c. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/SEBGE9501101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf89d145980eff08f74bf5d472b37f76ab294c8b1e11950cb72b1302f518a7a. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/SEBGE9501111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaec0932bbd7453d521d6273c0c8fc6568b22fa7f641a2662a126276d6d68b8b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SEBGE9501131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df5d48304fb901f5816f2ce86ead877c6809d2d75137252d695a5a34f476336. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/SEBGE9501161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e5a413bb0da68425520284eaf1424629c891036ddb551352081c0c1620b065. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/SEBGE9501201.