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 0xe5e3dc62de87580bb0b084283a547e860cdd20ede04abffe4faece5f16042681. 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/1da7175b-3e6f-4009-9dee-fc448904b464.json and https://artists.proofprofile.net/proofs/artist/1da7175b-3e6f-4009-9dee-fc448904b464.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 0x40a3fcf86b7a8dacaefbb3f3e7fc12c21d364eac9b508f7f6ab39547f02273cd. 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/QZMHM2282769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7121d0d5c23f9235cc165902bfc5db7f9fd8a59bb500d2128ce3ca208cb49b6. 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/QZS662282314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863c27a5f026054acc09a808482e507a7f36950f8ed0d0f26ad4a31249203cb2. 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/TCAHU2465952.
You're Not Alone, You're Just Having Some Idiotic Dream
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee1d37c4e5217b1c2df1aba06b1c8b0b4b7ad58d7fda189027687f8b6711167. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/TCAHW2487019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60b962fd9b9793ca81161752485620c5d49e660ef021df686127fe5528dbea8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCAHW2489572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7cdc952ad49e4c13bc5395ade339bfd0c3e3abd6e8626c55319ae1e016e8d2. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/TCAHZ2497621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c32fe7f4553256ac54ff5d4da390eca36464ec0c4c416f5701ad3e9fcc38a50. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TCAIN2476597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7246a30b538c30f8db7a8836393593338646b80ff78279aea191a0ceee581dc0. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCAIO2458001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7845dd629c8732150704a91d95d582687bdbae9c4b0ac77bec1135e073a2a715. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCAIP2457995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099a69345f24eb94c03c00e259576ab3fd00c1a45844d2fed09b1813c90e456f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAIT2433095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f353f075410afb69392d80d6a4555525f6a4a0ad4766b1dcf4a79ef58b7b50. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCAIS2459074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba32307038bdbc2f7490507d35b9f54c1dbd71671079c41eef59dd42355f883. 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/TCAIU2451739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb29fac0cb572da25aceec6290ebaeaa6ccef8f01b5070e554b21c81246b2d74. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAIZ2477802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08d074cafe4e8de630d8a294ef7934030346022ac04fc78aba76957ac6c41cd. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAIZ2477812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9659c361a149ca19ab46923935c598576b8dfe50a5681e1ffd26a336ae1a7049. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/TCAJC2457661.
Are My Songs Just an Expression of My Insanity?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dfee21255d22389f9171a14f711b941fd0210131ff167bd4ef04be5a560ed1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAJL2565566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd65d37013120a4f4484a66f321af99a84c3769536d09702a72829289bf58f12. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAJQ2578699.