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 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 0xd609859555ccb760ee79f205e9961fede1642961e0443002e0333766581c8cd8. 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/0470d420-2f95-4b52-bfd2-64194ba88cd7.json and https://artists.proofprofile.net/proofs/artist/0470d420-2f95-4b52-bfd2-64194ba88cd7.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 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 0xe4d3295eac9e29a7fa92c9eebaa6ff5df42aee80d3e6670d40aa6259779a4906. 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/GBLZC0900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8baabff874496d2d08f8099f69bbdf677aa60245798d6ce375fd37d23e0a2c. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/GBLZC1000039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d3295eac9e29a7fa92c9eebaa6ff5df42aee80d3e6670d40aa6259779a4906. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBLZC0900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4715f663339f6a22f52817cf34e5feddd3698ff2375b7495dab53575e847986d. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBLZC1000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18bc7b577223c9741eaeea896e0ee4ea7fd61f25035953aaa791585882e56fa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBBPW1200176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48cbb4bb169ccbd72a8947410adc8333ef430742e3f66ef8dbabf8644ace208. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBBPW1200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0362f92ca79e23f5af231fb2acaf31ab00013ee58f5ec5fb3944a5c0a36d7af5. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/GBBPW1500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1e78ec64c07ee5af9ce579dc5b793cd764d1d14a9589fd12d8efd42f239868. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/GBBPW1500117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73cfc1f8d2a2fd8feeaa588d680077794630dc944f1214117fe99509b2d5b6a6. 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/GBBPW1500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf7624319ddaf88809d406b50e04696785401db878fb616681cf5307bb8ce9b6. 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/GBBPW1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1633304b0f76094c3247e3049d182f11aec3d11acdbfa383d9535bb64fba53. 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/GBBPW2000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2131640941ed876c584d449c155e4a95e05ea886ee549a4c1405e0c06fa43331. 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/GBBPW2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fceebc5d38e0c09415eadc5b19f7b25812a26c2833117675124be2d15e69796. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBBPW2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ef8d2785911f76ee547b7ba9cdcbc0d2bd3f0d4c8257db8f5540a94870bd49. 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/GBBPW2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f444edfefbe38e74b8a71f88589639e888173cde5e586395e6f1ec31010258. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/GBBPW2000008.
Text (Totally Enormous Extinct Dinosaurs Remix)
Text - Totally Enormous Extinct Dinosaurs Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca86e69271519fb445bb8bd4e23e34b87dc4699911ba39e39ea5487c70c414f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBPW2000180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48cbb4bb169ccbd72a8947410adc8333ef430742e3f66ef8dbabf8644ace208. 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/GBBPW1200184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccefe35754c0e7af0fc5c75fd3b15feabb575e9144694a592bae476863107573. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/GBPVV2003334.