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 0x47441ca04d2e130282eb55a9cd747e4e34a1af53efd32e91cfd724e73119d0aa. 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/437e575e-f6d8-45c8-b109-625ddf50db2f.json and https://artists.proofprofile.net/proofs/artist/437e575e-f6d8-45c8-b109-625ddf50db2f.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 0x7e03f3f097e532641d51abf88c2803b3ec6a3aaa24f011149abff304474e2c2f. 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/DEBG51800130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8523ce2697f369abbc39379673d5baca3e772da41d3d432e086134f17bea08. 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/DEBG51800132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceeaa12fa65fd507c1779881118d2c713656ab7bcc70b21a4d98646e2b7d1d79. 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/GBKQU2342109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0f22b0625e73e3862de91d014197aca80f22871c04c7b2ade1e2d3ad675a26. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBKQU2342110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32dddb3defbd35e7d6818c9b7bbe06632cd24e3b05282d0b415710af7a60ce0. 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/GBKQU2342112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93255f8515dd0950bf3de5ea172fa5231d4d08b1df859a96665f669580fef2f. 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/GBKQU2342114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b045ebef8728a160f6d23b227e59b1ce76e19966e7248de77daab41532deab1. 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/GBKQU2342124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeca90337a8faba08edc4eaeeb94b779d756381b3c107a105ab7e279302548b3. 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/DEBG52100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b8027d84bfe0da021b6562d7a5f25e356097748919ff5d3c75012f00bfe8ca. 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/DEBG52200190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1e7a45da5da6e6ef3ef7eb38997e057301e0c48bb8220e5430107b34a2cf80. 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/DGA082478300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5b5cec53f638ce6a7b2941f12ac85ca53244088e24270b579fa12eb6cefb64. 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/DEBG52200154.
Rave the Planet: Supporter Series, Vol. 011
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82434542f4695e26607aedac75e34b4223104cc619f595bf115802f15b69bcb8. 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/DEBG52200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ad8abd974fe84c8cd75191de31c134c1eebdbcfc611a96fa7d9005991b59371. 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/DEBG52200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadae28e15ca15b07c9f420a200be6cd12598427c408f0b94a1b483b63e3ac19. 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/DEBG52200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65c84707c29b02c70e9a5c4b7840a3423f2ed262145b30f46b20ed5853f524c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBKQU2210083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0af94806670f4afa82c066e70a3752be57f16f48ebd8cdb443ff46982e014e. 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/DEBG52100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb99c50ac4a48f8d0afa7897a81d261c5783f44e749389750994c11c8baead17. 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/GBUR62000329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155d3775f5b4f424d7ecab2f4eeefc5f51b84e2285ac33fe00d1648115cd5daf. 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/DEBG51800045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e172613755dc0ca9e6840404333c6c3f25ead21da868b8a68923c2dcaa7a7d. 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/DENC31800063.