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 0x1e3869e5736e606f5dee7810ebb479da024a1861c04ed696d71e07dad7fcd02b. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a3221151-6924-4b51-b5b3-0ad0752e9846.json and https://artists.proofprofile.net/proofs/artist/a3221151-6924-4b51-b5b3-0ad0752e9846.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 0xf300e408cbc33b6412779b50fe92e1782e6a9093947e6484f199eae868c9f24e. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GX5J22100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc8811816a180453f08de87f4f50451d95bae97c5471fe35edabf6c59849aba. 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/QZNWR2275232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fadd7a2c9da7b73331d78e0074d41bdf0ed9dc8f92287ff236f4ab4743eda1d. 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/FRX872273497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a038b51c1e80da5bb12dfd737fb8dda1bdda6c82c62ae13806e0b77356c1ba. 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/QZ7GS1700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3463e67a01057d5e2bcaab147de759090c93b11e0c9738e8e3ca671a289787. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZNWZ2168392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7323a9a14dc45cf2c1833d529a2c86a808e0e47cf690fff90f0773afd5b83b8a. 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/FRX282226599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e2edf5695f0b50185b78032438f98af3679a1015a8d832a1a82f5013209b7e. 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/GX5J22100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1fa2f905c88c3ceaa848ccc26962941b24f17501df13f226f4de611d6bbdf9. 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/QZFZ42233165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2feb5487c511d5d195484713ae03bf806d00e8d020bc6ffbecc4b9d534af1295. 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/QZTAT2290281.
New Indie Folk; April 2022, Vol. 1 (Indie Folk Central)
​New Indie Folk; April 2022, Vol. ​2​ (Indie Folk Central)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2002433ddeb9913ab94b7cf5fc4d173077687b1d7eb2802edbc68a5ed6cadc. 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/QZDA82213481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc118940d8c3378bb2d14b1fb79d78618b07a4a9980e53ca46875d80b9b1fc40e. 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/CAN6Y2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b09166bed37ec5ad47e1787f062630dca2913c7702f54d199a06e0899d8f6c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTB22361106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3352ce003347dbcda2ca4a8818e7ba74435a754218e20cdeec365580ecb1eea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZDA72354779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d45f45e16b24eb4ba8e9b07a2ee4026ee0f4fbf2c6c50aa9d79b3976972aea. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTAY2214739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9962d07e7e7f0a14c3ba394b9ce9becfd2f6294ec778072e75799316972d0c66. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZNWZ2127030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3463e67a01057d5e2bcaab147de759090c93b11e0c9738e8e3ca671a289787. 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/QZNWZ2168392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9962d07e7e7f0a14c3ba394b9ce9becfd2f6294ec778072e75799316972d0c66. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWZ2127030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87bcfaa25f713900a5b497a4908b0c5e98b2a0a90a8590c7b2f3d0012ee1e521. 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/QZMER2018124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2357c116ae349640c3f774a7385c700af54d657bceb1ebda45dd1196f6f9cdf. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGH2486892.