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 0xc08634f7f199c120495e37a3db99c02a886910cb23a1626cb7fd779a36eab88e. 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/6ff44c01-8d07-4719-96f7-8b40ddaa873f.json and https://artists.proofprofile.net/proofs/artist/6ff44c01-8d07-4719-96f7-8b40ddaa873f.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 0x041e9ab839b606c708c5ac80898d4d3b8cb231c8448648934ff63529af2a59e1. 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/SELAA7800401.
Bortom synd och skam/Blås ut mitt månljus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338dfd8093392ccaac0249a1b34c1cc655f3a047c5e8f0f036c90ccb2b24638b. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:41:04Z), 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/SELAA8900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a457228d34230e3fa576af2fb0036d5cf921c1b1994ca4ab2154fd28ee9a0c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:37:24Z), 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/SELAA0501703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbd396c0bcc1cb18f23fae3aaf6dea6f327301b6ca8f57356f7ef05c9924f6c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/SELAA0501704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed90d9b90b8f2a1cb7f118f731d037a0929afa98c0663c0ecdb8f9500d8496c8. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/SELAA0501707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0dbd1091888a95e6d5e17c22bb1630ec53eb03284ed1837139913b14e5d93c6. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/SELAA9000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409c270072c1270d53baf48521805f535ed9c468b2ac5818c4198a113bc403eb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:56:57Z), 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/SELAA0503001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed95e90a0888b9e0e25cd6c68c28ab127932cb151c6cfb8e61d055db2e48296. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/SELAA0503002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65eb1886f603eeddc9e9e3469b511bd05b535a612831bd9cbec8a09387eee0a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/SELAA0503006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d004c908b5a07eeea393035ed976a34e1defea4888993a41e1eeee8cfe3608. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/SELAA0503008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90fa162f674a3415399d8a4a653008574436f40642a18e337986cd3452409dc. 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/SELAA9415040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3ba15ce95ff0cf2ec439ecc80025bd5d395c43709282aa14636e31c4ecb4a2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SELAA9415090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154e477008f5650c3503deee06d56afcfd833dc66b20f3e6af0d51e77dfbccdb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SELAA0017070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77449947cfa0ccca2bfdfdd2b95fcdb143ef88fed0abd2bf9d831f372cc8635b. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:31:29Z), 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/SEWVD1100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4355bdb35bf6a7fa4d1483ac6e75f39e3b76265583887fafe814884a1ba7359. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SEWVD1100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d7edb002c548b7258088f5a356d011fcf1900a56b6752a1a1091aeae148e70. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SEWVD2000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dfc8dbcd29547d0ee91bceff4969dcb462cc3c32ebcd8ffb8513fd4c969af6. 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/SEWVD2000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf610ac20a515a637637599fb703da192c3df63f8d532aa6127869414af7ab0c4. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/SEWVD2400103.
Blues är allt jag har (Akustisk version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a8a158199913056caf5125f3e6fa8f854d5c801181aa715847984da3d94a135. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/SEWVD2400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5037a8336e7356e62b2be2f863209adbb04b130da6d961cb4a625faa2af388. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:29:52Z), 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/SEWVD2400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0014f23ce8be5bcae8cb9770a72fa78f1f9ee99c6549bc51fade7723c571c14a. 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/SELAA9400701.
Blues på svenska! Metronomes poeter 1964-1980
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaac62c147778a480da67ccb4bf832c9c8173c8be309060622b1d7fb5a227ee5. 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/SEPQB7803130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27f7f64fbce5b43b3bdf0cab0e1c7feebbc7b50fb929ee73b1e26c2bfc54a211. 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/SEPQA1000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bc56f3e67e8f6df7061c1be3166a4fb0105bd6f6f5472c3a5538108047767a. 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/SEVGT0604610.