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 0xc4b0722869894242a668e632cdd80a211f47210a4f9297bad5cbe73f8dc5bdde. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3dcc2785-276f-4708-8ab9-6474e54906e4.json and https://artists.proofprofile.net/proofs/artist/3dcc2785-276f-4708-8ab9-6474e54906e4.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 0x70236626c2053a964d14fdc16e37fc5f1a04b1f9db62f0255d735f96250e9a6f. 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/USA2P1956191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544833a17e48fccf4f2cda03cc6c0957fb1b415ae406980c46e575e395d94ea7. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USA2P1956194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a05566e78639515a6ca890fe6b09bf2620f323588d88de2d061660ad7e9776. Chain 2 (Bitcoin): anchored in block 958351 (2026-07-17T02:38:05Z), 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/USA2P1956195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabaacca20298d328a0cad931c554e41b36ab37627b373228264798112724028. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USVR10300343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac299e4b60df30f897dfcdc5d9eeb13a4c63e98922312a6d5c2cc8206f139bfa. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USVR10300346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e7bf8c4b1ade23c45890f0891701d7c225dea26faf8009aeccd96263f4344c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USVR10300347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593d5b256a1ab28755399c91c3d8752731fff22eaf9850a639a5cca85c828f67. 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/QZKWA2022136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbd4f8ee8ed1344921ed360c4bca7372c50c244dcd9dc2ec694fc0dd612dbc5. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZKWA2022135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b90b08540b095724e4f0cdee7c4869f85044510263df0b278b25543da204b7. 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/QZKWA2022137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d4db7d27da969781c9675fbe3649a0f5234b41945edc5c679f4d896f1be09c. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:29:19Z), 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/QZKWA2022140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a9599322e8493f4ec370b981a1b166472cbe72b4aea8d91eef4d9d43744c01. 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/QZKWA2022142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e3dc299cfe4409ce97facef45f0f16e55820b005fd7b020a1a8c3e6a03c46da. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:07:54Z), 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/USDY41863204.
The Official Soundtrack of the Documentary Green Jelly Suxx Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad605dbba5024074350b523ad3bcab366924d2e2aa24a0bbd0b82a2acc6c6c29. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM6XS2100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc6eb7dadbf12877be37f30a996fa4573241e63d86352615b80b95251ccd033. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QM6XS2100139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f71caa66036253fb89b4c2e6e35619c8d5ad4cde4cf598663df163d93e6e40f. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6XS2100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca140963230bef07734c7f9d5e3e136a97c324a85bada5d938dac0298007474. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T19:03:58Z), 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/QM6XS2100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7c8915a12bb4bea928df4f305e0e8586fa15d5dad6e0259850bc51aaaa2f2e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM6XS2100143.
Freetoe Feet Presents: A Green Jellÿ Xmas Soundtrack
Freetoe Feet Presents: A Green Jelly Christmas Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a207a9fb510843bbfac00e8abc59b2e5750f8eecc05d31c2d71eb6dff4c9eb4. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/QZDA52484643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf85c5a7abb81ae39727552f701a368441c6d530ba510f005acca11cd63cae4. 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/NLCK41044726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45485893c23df2a149bdc54b62ec42e22eb0277f3d7bb3929004f6a4b359de64. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USVR10300232.
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