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 0x6263379f39c09bfba43d9aa74b4a87aeead8ad202c3bb1389185f1b1ce6f3915. 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/65cf2ce3-4c7a-4210-812b-642cdbf21c6b.json and https://artists.proofprofile.net/proofs/artist/65cf2ce3-4c7a-4210-812b-642cdbf21c6b.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 0x2c3c458a5134149b4f5a8426438b5af337cb257d81699d4feb39f285572aa435. 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/NO1941809010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb43637006f2969caa2fdeafe8a9f50e399349aa443bfe74ab98a26d50bff146. 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/NO1941809020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf924ef996d6709dea101e0ba5b6c5ce14d2924420cc81665a8c957be766675a. 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/NO1941809030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709716acfe77e242d929384a253be155c44832c918ec654ce548135eea00837e. 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/NO1941809040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83358e4da1945852b7b974ba0c1df5fdc776ddb485ffa3f1729c9899bd7248f4. 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/NO1941809050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x926cc7b464bbd958b227e447c9d03043622809477f2f917ffc1c5767d5e0ed15. 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/NO1941809060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26467e7a6f795c166f1f7c2391ee12a8b6d5766973f7ceea22a1b703f5f97caf. 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/NO1941809070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1034d8a35e5bb6b7845b3cb4f3eef4e160080d7e189ba43bc06d41b774feef. 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/NO1941809080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ef138cb1626852e994cadd60b102d91357c6fc4f57416e4cb64519852b1117. 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/NO1941809090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bae9e38ebdc6fa5d19731ef800d5625f1185d8d1d0c1ae1670a816de5388f2e. 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/NO1941809100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fd1f6927ece51c787ad2ba424619caf542be1c26eaec7e0f259910c2785f6b. 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/NO1941809110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ec05520d8f81289ed1a0624f28c50655876ed15b62849285e36d5b330a124d. 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/FR33T1637701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaacd77a919d112f4a44a16cbde28f44163f8aa17ff0f553890f40854b58c0c0. 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/FR33T1637702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7d46c35cdb6f55b7657b6e8af63df399d738f3e08b1e2e830447114dd7b448. 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/FR33T1637703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b7bf3e471787d040633478584277b113551c90ebc5823851d97ab24ba15bfd. 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/FR33T1637704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e6146dc7a2a6f355b21bc4e7ec641c31e7d0e3db13557f3cf3bca3355988d5. 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/FR33T1637705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe76084d4446c290669c7dc0f7faed9f49b0ce85dac0ad99185916d0cfb7fc94. 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/FR33T1637706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec966278f802655216288e3bef075c6a979b7842ebf92e2dab3319aa2089990. 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/FR33T1637707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f993d117cd218fed9610ff06c0ed32db7fecdcc8269c2e9d25a5aa7fe1181e5. 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/FR33T1637708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891c045211c2eb90d9ead826c430607be766387a5fc2ffc0ae4f0522b58e2da6. 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/FR33T1637709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cefefc360bedd1eef123c17da21c30e2195ec2e296d15528c8a0824b5dbf652. 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/FR33T1637710.
Skaldens Song Til Tore Hund - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1796cae7fc09e3665c253364ff330fc2749480f18579063da8c0cffb2cc5cda. 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/FR33T1637711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f0fce8b5a21a22bb70b699abe8ba626289282afb96dbf240ef3034dcf80d70. 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/FR33T1637712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27bcb486d89a3745fe6c236b3344d150e6f010072fd861251c45fa408085a61a. 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/NO1942132010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fd56ee72966faef5b15890199e0b15919b4539e195304157bc669e843bc4ed. 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/NO1942132020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3c458a5134149b4f5a8426438b5af337cb257d81699d4feb39f285572aa435. 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/NO1941809010.