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 0x0c4b7b27e016c00d8fb3ee9a0646aa679529e6de24ced5e151431d0bd93ef2c0. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ba38082-93e3-40df-8d96-b6fa8f1668a5.json and https://artists.proofprofile.net/proofs/artist/8ba38082-93e3-40df-8d96-b6fa8f1668a5.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 0x7a4d85c9eb121cb739cf8c911a0f1c176d3369d4c7fff16d3239b3e4512d6b47. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/SEVGT1900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb796e24c2b1995b01ff7be0cff9a588f6853d7f43aa130e59cff1b34c0716656. 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/SEVGT1900075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1585b9ee8fcbb4e56e2ce0be77475b9ffefe5b197efd8a4d0a81e228d47ce0f. 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/SEVGT1900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba77fb43d6ac9df263a7cf2677d3c87dd5500292058674e09881a2f7ae2c57b1. 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/SEVGT1900078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba67926c9588cbab44214b994a774198147b94b5adefba8a3e6ea4c13100bf5. 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/SEVGT1900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5744aae1f3f43e21b958e86fed6c13a9f0a7529fc73456588127e9f011cd0759. 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/SEVGT1900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3d8ace0b81ca7d02c3da514198dcedb8a2e6ac3eed097b023430349d284c05. 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/SEVGT1900088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8baeba5e4247e058a91833d98be6747452f8b60e495c5c13669a79a3e7a0c31. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/SEVGT1900073.
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 0x59539e350f796448e0461978d696644374b3629b8776fd78f75c723e78f65997. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/SEVGT1900077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0feff8b78bb859ce4e23ef05758751e1c7e73f0a75a1e5343f17b7edd177609c. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/SEVGT1900079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf745e486a4baad8cee7bf4ee5dd88907d743cd04570bd522f3dac8b983c76aef. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/SEVGT1900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24aa889119361d1803bd4e53073d8f09c05aa31cabb1768836392bb68c163ac7. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/SEVGT1900081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcd5559cc982dbebc92cd2dac5b5f928b43474ed188ac7a65b876de2091cca8. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/SEVGT1900082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348c8607ff3b7ca2425cdb51a1b0e49165f7abb9228029225916fdb75b137771. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/SEVGT1900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0fe974b2fc82f6e7446316427012b935c9310d8d0554d74ce64fa7a86242a4e. Chain 2 (Bitcoin): anchored in block 960349 (2026-07-31T05:23:41Z), 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/SEVGT1900085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52597c898e07e2747fb7db4bea249ce76c81814b3b367d9b95120b25ff38b46e. 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/SEVGT1900086.
Tomten och haren (I ett hus vid skogens slut)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0c61821cac82321837640e2c4eb3a77ef2c761e52ac2f485fd1ac44b408b98. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/SEVGT1900089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93e64624d85efec1e7ebd6caa6090f3548e8cdbae067b5fe254545769afce5d. 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/SEVGT1900090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47320b2d66d8f6abd45159611c63fcee11d0548c87162bf1607fcdff2ded383f. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/SEVGT1900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddd16685c76f30a306ea7edaeeeb27a2cb7687e7efdddf43175a9a467699750. 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/SEVGT1701719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf22b8210a5723561da4f17f255ed5c7ec836daabc3f781ddf0c9e5b168c415b. 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/SEVGT1701725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8aadf101d406ed95ffae814f34f2c4a51d53762064c1acb2a3f241aaf0302c. 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/SEVGT1701709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222e5e920e50be2ce1ea1443cf7dfdfb8482f4a1f25ce9752599b534df62c2f1. 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/SEVGT1600113.
Någon fyller år idag / Önskar på din födelsedag / Med blommor och med blad
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da2e63a26efc7a7e2b91772e2335ffd8fa03fb0c249bfac2be4297b5c0f12db. 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/SEVGT1600115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd3f76b9e74bb33e2bae2d4b551040d4617d2e5374afde873f469423acf578c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/SEVGT1600117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a9801970256b171695e4a4b032a2ee4f41f0f8026c9dbf301bc0a459f64302. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEVGT1600135.