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 0x11e414fcabcb78928663a0d164086e978b1b011ddd9b196ee2195aad6619b52c. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c48597b9-4693-48fa-8960-4fbf34e0e6d1.json and https://artists.proofprofile.net/proofs/artist/c48597b9-4693-48fa-8960-4fbf34e0e6d1.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 0xa77d1fc4631625a617a5fa9df111b70d97e1085d32fa9d90afcaeeebc265735c. 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/USHRQ1200143.
The Golden Light Swelled Somber in the East
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb034f9840739c8ff0eceba4292186ea62d340aa066766187f3dc1171b2f9dca5. 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/USHRQ1200144.
Inside Its Cloak the Ocean Tide Held Songs of Restless Beasts
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f4f80e240cdc6eedbbad8158287df0d3b44c3617731880b9d57682e07cef4e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USHRQ1200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63650b0786d84ac5393dc0d58008a7542de4c4ced5cd2b24c7d3263757a4c2c8. 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/USHRQ1200146.
The Moonlit Towers Reached Above, in Blue the Hours Beseeched Our Love
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc784004351bec72f8d666e33738fd845f83e8d96e92a6438c07d29cef82eae. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USHRQ1200149.
I Dreamed of Choirs Slow and Steady, the Song Was Ours, Its Woe Was Heavy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74269d0991ecd549e3be5de463a4140383d93b80c9aa7b91e5cd2c461d78647d. 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/USHRQ1200150.
The Night Sky Broke in Open Stride as Weary Stars Increased
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9511a4298b2ad7fbdea0ad4a5b1d08e6056bb648def515603d0abd3284dd7605. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:53:40Z), 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/USHRQ1200148.
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 0x0a4a7bed1dac16c3eb7f9d1fdd1dde21dce14619b98c5ac0f90c40e603a1134e. 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/USHRQ1200147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000e30ea81ba95ebc5f009e3dcd3ff0d89ff4de55d351ad57ca16f5bc2e551fe. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USHRQ1200151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8385bb8fa029a5202570a197925e6ded19a90cf6834a8b67450fb8367a9ab0. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USHRQ1200152.
I Sought My Love Beyond the Hill, I Found Her Bathed in Waters Still
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe589e881f09020a81f92b1d751a26420e66e59a8ddeb00eea4fc8f753fa19a57. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USHRQ1200153.
Then I Heard a Voice Like Thunder, “Come and See, the Final Wonder”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3019e99a84384ba8bbe00058d7271675889a1be9175caab15cca8111fd51c451. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USHRQ1200154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f0b659a3fd8fc02fea3d6252204d45dd47e70b60645a0a9519bddd45b47909. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/USHRQ1200155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44ac5a1d64fbc02387ba424d64fe349a625b719baab281f036d274fda72a8e2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USHRQ1200156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5a234ee9efd6ee41a4122b754448145f8200eb18aa9bc7d66d73acc0051ef2. 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/TCABN1364551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c61509ae4c2131271bc86844f901c55dfe92e8962997ea201e19215cb09ecd9. 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/TCABN1364553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0568d318612f8ab5ea877c4cdbca282aef2ccdac7b1341eaeebddf93a65189f7. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/TCABN1364552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeff6669c5142c318e1241e30adcf0123efc164de34f4977137af4b44608bf8e. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/TCABN1364554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af1bfd41f8a80eb3ee900786ccf9f8bf15db3d59a61f6bc7788d52147fd7047. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/TCABN1364555.
Let Us Face the Evening Skies With Child-Like Eyes