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 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 0xef8510e9df355e418975df3a680c36bf301a1cf054181bb9ef1fd39158bff7cd. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b6338226-7176-4bf1-97ab-ffde8430bae7.json and https://artists.proofprofile.net/proofs/artist/b6338226-7176-4bf1-97ab-ffde8430bae7.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 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 0x422822884daf7ab60e99a841395c72bd981bd5445c6af6f4716fc64f05cfedf2. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/SEBGE0700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f57b077ca7d9294fedb12b9b3bd7e767a5048fbe698a0fd6e24f42081b84ee5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SEVPA0601001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35feb46b268466ef09f50f163233b038c837b5942930af04241328aa658e74e. 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/SEVPA0601002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624f6cd17e69f54b5b3ca147164b61594f5de747af1f7b672367e66177ceadf9. 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/SEVPA0601003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc4125b04c5ca098c190cecd8e37fcf8ae041157626a91ec876dd738b4b9439. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SEVPA0601004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0453f5bb98ba23fcb3b380678a37858bb02b7b74d16b9b024d25421de9392cbe. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SEVPA0601005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0413c2e5a45685be57c0cf2f1fbfbec5cab31f5417ddb1129fe93329be2d977c. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/SEVPA0601006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723a5070c74c4ac69d53a12fdfcc024a6b24f4f153b00b91f95bcbeead643c09. 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/SEVPA0601007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8f807a078b1ead63676de808978b7832ab0ea35f3f387313e62809f1d40ae2. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/SEVPA0601008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc48bf1c07b8c63b1a693a175edc33052d3711859e6f3e13ddb6d09169545246. 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/SEVPA0601009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacca2cad91ee10757cd24288b543b50b09158b6efc955903da8603205ef786f4. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/SEVPA0601010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac775a75387bc95d116284c2f7c4f895e26d81e128c6a3499e7d95564fb54d2. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SEVPA0601011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fe32b22a98657afde75b1198a67c0106599324b9c27ad227aab4d4ae2432bf. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/SEVPA0601012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc291b16f62505a6e4a11a39781fcd3b32b6d175ec0b1decb1f48955d6f4f4ee4. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/SEVPA0601013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de4708c19db8cf964fc7dbd062be29eb406b682c20174c8ad47af7b283a27b6. 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/SEVPA0601014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ffbd33d1366732a33d7ad486cc3747cd1c36fc5c776a75c111b464b29fd26c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/SEVPA0601015.
Någonstans bland alla skuggorna står Jesus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1b2cfa8a5d222dcb09da0f967f2f012f78c373c4adc22bfad9db985c9a5623. 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/SEVPA0601016.