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 0x2f8935bc9d9688c013f58bf2650976d66887326636104b1a0cd273891bef3046. 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/da29ece1-1954-4d0c-9bd1-33fe3c4a77f0.json and https://artists.proofprofile.net/proofs/artist/da29ece1-1954-4d0c-9bd1-33fe3c4a77f0.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 0xc39b654d2325c0757617f83707a142a5b87b7c39725ff351cd0199bf8eee0de1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZFYX1964455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd408e0d13418fe1669bc6fa3859caada00b9c9748f366a74788b9c7c0ad18e59. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZFYY1953014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5035ca0d30172728209b1a149c2acb3a3381a6a8c8b0aafa2886560b100e6fe4. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/QZHN61908020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf115adfefba020f3ec47983c3fb73d1bf19ee38021a616d34048d44721bc457d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZHNC1913003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc8196e46a1a2f2d951242dcb194025b3438807929590457a8aecfd60d7e5e9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZK6M1914093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d3bf54da6afd80d0740b52d54a8df13fc4f13430a5d4eb091ab48309ae9551. 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/QZK6H2075495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ca6723d12ffafc2d12fd70d4e22fdc2d78addc1c4f42e23de9ddc242b26020. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZNWV2035825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a2e3867f1c68a4052b70740bd27ac270525bf4d53ea3b4271e8f4fbe4a863e9. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZNWZ2028505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4204a5c6282631ffb19f6feca441b9f180ff70f9b3b5e7899edc15dd4a6e72b. Chain 2 (Bitcoin): anchored in block 958819 (2026-07-20T06:50:16Z), 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/QZNWZ2028508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3a3299b841d11b0c9082b52e65a7a41a8cf47b5c162f2c736b6a746307db5e. 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/QZTAS2134690.
Толкова много неща на главата, че трябва да помага и втората
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb6801ec06b17eca9c37c8af867d57d66be67667388e8a974cd18f0bd74eb28. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T16:04:36Z), 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/BGAAX2300486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6abd8260f82c3abfc5413ed9fbc0ed76ca90a570c6c56356a7f902b81399770. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:26:01Z), 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/BGAAX2300511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac48ff718121fefdef3447d83a4a25bbf43e7af884f9c10689ee414cbec6e092. 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/BGAAX2300556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda15b48671644cd59bfbf8a2d469ad64b37f247139ca444bb0af4ff09960c8b6. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:31:19Z), 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/BGAAX2300454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb6801ec06b17eca9c37c8af867d57d66be67667388e8a974cd18f0bd74eb28. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/BGAAX2300486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d017093fb372e27a96352a20d1fb0a6a7482290d954b09e16af605a74b1f5b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:00:41Z), 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/BGAAX2300607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04fd03439d52f3262490fc4170c9663707294df6c6cb4be21b639ee25800a1f. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:06:02Z), 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/BGAAX2300608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832c21f3ac93c173deb188e85ac5c1ecb8074dc7171688ae769dd1526b81ea5b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/BGAAX2300534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9a06035508f1f16707656420478177b114dbfc03089d01f0f65262282cd49f. 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/BGAAX2300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c13bed5d7baeec1e8e47ca5c10599b3f5fe0c6d93d7c2c79059b983427762af. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:33:59Z), 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/BGAAX2300611.