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 0x6eca44326af5a395496333a4adc5fe0c6c53abd448f49e4d8e44d532d1a3e765. 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/c250173f-5afd-4a2f-92d0-c8cec9fbebee.json and https://artists.proofprofile.net/proofs/artist/c250173f-5afd-4a2f-92d0-c8cec9fbebee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Autumn's Solitude (feat. Patrik Finhagen)
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 0x15a70fac8d1f2e728685b8b94ec520a3a6516f363b77caca6707717184b0bce6. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USLZJ1886646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda4c8a34a301c0dea0dc09a60b2da042a48ed95a9276a242187368bd28957f9. 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/USLZJ1886653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28b71be27b12266d1b529d5fe8a3925cffea4be8d7b84851edc937ce3c20e18a. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:50:58Z), 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/USLZJ1909068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732c5ff25dc7657b8ecccafaea207c03ad7e243b1b5cb70b646568284c7f2803. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USLZJ1909071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577f7a149eb7c8c3e8e1fcb4a398b8b713f8464d33a104b0ad8ddc1a41d492f1. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/USLZJ1909076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f502ab03d145f87dae3f48c571585b7c67df187ab7045a845d5544ad5a17e1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USLZJ1909082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7a67b9bfc36a8fe04662ab173d03728adfac765acd6cc258060169a416fd27. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CAUM82000126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9943497330030a170d155e06c9d1c4dc6909b79f14bbd2b78385eadb98c45346. Chain 2 (Bitcoin): anchored in block 960230 (2026-07-30T08:32:18Z), 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/CAUM82000124.
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 0xa32d478aec3558f0d4f361249ee03e2620e3320b24cf2a773947f4b326469b4d. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/CAUM82000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e31697c194fb4a3ec8fdc597de59fc2cf3b707035974fefe23fadf9f7af233. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:39:23Z), 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/USLZJ2052936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10d5713e0760f1f44eeba0491c1668a87278da3247a6bef04e57eb9b6ae7604. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBRKQ2151170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8575182640a52779b5a8e827c419499134c4046f386b6666b10767ec296544. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USLZJ2294490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce837a4a261a1fe598ac3b223769ce8e8ceda1cc04d2c32b65ff8a3cec349054. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:27:24Z), 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/CA5KR2270640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4256a16bab7539bac0801eb305cc4e8479c03e16ec757947137cd67ba756cc9a. 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/QZWDE2243492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6d0553fc6fddab65785d2047b5c140f10c8ff376baba52f9191e907659dc09. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBWUL2395757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4f3e0dfc1b5e717ca52ad887040ea06bb18711df3f8a54bd59ada0b58836b4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:44:17Z), 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/CA5KR2363050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2f11150d76052cabdc1d1360e5c620b202310045e3bcf62a3e3351fc657644. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T19:00:47Z), 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/QZWDE2315122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd677699d450ef6940fd2ff2e9b4231f5b3b8582150bacb52b5f755d79e5e068c. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZZ8B2359688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57864bfa83c4143070ce0b7519607d774b78f6e8794acbc971b6a3de79d95589. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CA5KR2427784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d1b6a30096e34333c37455f225c65dbd55b26c1d8681c56fb9375bb7ad4382. 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/CA5KR2432692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0b7c8f6ce80bb7db6a51275ef4edfb1985ef5763ef6949bfaa7a5125fe1c63. 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/QM6MZ2438563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206011427c5c474b9350fc57b49f15090f3db291f8642032e9440f753b92af8f. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QZTV32415106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a412bb53e7c64d8c7a1cea0967f5f092b88e8d2df349f75aa75b3bc54d4a78c. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/CA5KR2466066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552525876a0673854cdd3bb873fc1e46ac35fcf78231abf49639a43645157225. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/CA5KR2486588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab84a8e30c15d78c71e8bc707e1444bc17d2129e4c90445c7edaffc9d43232b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR2501121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc4dcdb2c8f6193fa25658bf2604032707390dfee174fdb5cebd4170dd677a4. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/CA5KR2502468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddcdf23b1ab64ef5b946e80187c664124276caf8c6b096e057acbf514aaad4b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKQU2502019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b672f9bea9344c54f9a3b0a2532e5307b55f01bb30a5a4fcaafc2c5acf20be. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/CA5KR2527201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4110999c884118e1ae209cff184379182322ac3130858e2e00439b927d47aa7. 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/QZMHL2481530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8610bcbf9d554ca9146db3e627bc615ef8b9ff020eee5d9fdf071d4053f5f435. 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/CA5KR2426903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f77f857d7348a58594b38c44d8ae10021796fddc7f2091b1a11ca7073c915c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US3DF2400682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f3bf921675488222b7057fc0c6f0bba1a4eaf750450680f0cae9f40ad9afe3. 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/CA5KR2445246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11424940625988405079dceef8a4b58f5e84a0affa60f81bc80c48cba328249. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CA5KR2498723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5faad86f1174fdb225b0307d700a1b091e03a561942da33d008d358282b7b4. 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/AUK3B2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073f7a6f97e67f2fa914c087dab2935da4d5d1b044f6f3e9d6565c3904d18d27. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USLZJ1779885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f221fcf561c0a259fd6e9630de3d9055406b5c195749f8f2741437105a0440. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/GB8KE1954001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81267ed3693dd620a929c5776d127238a5d80314a2bc6659712f0ddfea6be5a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QM4TX2449669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275eff923dd3921d9e133ab9c28238d42ddc785b12bf3aa5c38b105f1b215f06. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/GBWUL2076490.