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 0x80803aa43b1f0289ba512a9a9d69d12faf1257c67cd5d7160e1663febd77def5. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8483939a-0262-4909-a111-03949e7f3af8.json and https://artists.proofprofile.net/proofs/artist/8483939a-0262-4909-a111-03949e7f3af8.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 0xec47940ce192a68f505e7291d11735c70275e79b6ea937e09fbe8def55165a8e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2403894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5960f6465fcb1bb1eb971dad7f775ca6838ea66a5eceda9c3a892f85006fea4d. 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/CA5KR2403895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda65c2602e6ee3db67d8aa3fe09d74b59a54a5254c937c99c3bd95fc49f9865. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2403897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87111fbe3591ef788d20d5c85819953a07ca735ac8da864170641002b89ee5fa. 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/CA5KR2403899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da6b002819fc36aa34a154aef62c115f320fb0fbe0ee36817ae13db3e0f57ba. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2403900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6c534ee09118e6c14ed76abb15748d6403bef6166506b9447198d93fa404dc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CA5KR2403902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0e47f1c6e6505c9cfe51c82ab51c5ca6c120c1b8a8bd1a77f20d1473c29f3c. 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/CA5KR2403904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf221510d1e5ae5cde9b469b2a1192a9697f46c38ce22b0ce0ef95047029ed19a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CA5KR2403906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857f77f79bfb5559a212e0a91751d73af4ba831e2da8a36692980df0821bfbdd. 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/UKXN22368004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8190d4576f9705aeaa52e82a04e1bfc51690db63161b99d2947210f853637d. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/UKXN22367999.
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 0xa51622df146cfd4fadb66a9816b2b2679e3d05765e363997e5586114859d669d. 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/NLCK42500851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7180fa51220ad0722d0483a141391a2dc1a52e342c8f10933354e8f5653df0a5. 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/NLCK42500855.
Isarnian Bloodlines D_B [Counterfuture Hi-Shock]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1977426b57444ef53ab2790524953fbaaca3a2e0217ccc71ca5f5689bc931d3. 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/NLCK42236042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a0d407ef5640ad044c17466301827c8034de20da88b1b5dea7dc5686579604. 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/QZJRC2282063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa669671a1a53856b30071a48d70c920c33e023a4ad428002d74f41210458694. 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/NLCK42227508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1d616cffd4ba6d6b1b4abfd4788dcf58f292061b7c6980e2a1d3cdcd04c6878. 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/NLCK42227509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e8f55b193445b2294054b8ad65c6c3da714a96fa0d7dda5e0998a1a80d4f2b. 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/NLCK42227511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6abd8537d0b05060e85836489688135e99079dce181e05d2623132d5bb7cfdd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK42227513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ae89614b1cb20581375b37788a4800474e133ec6f67814aae4354408a9364c. 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/NLCK42227514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb54563120a0df0bc6ec53d7373527927984cb215776bdb817555246c9d3e7c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/NLCK42227515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa35233546eadcde3055e9a4009afba8e9ddbaa6b184faa90d5ebbc5720c27e0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLCK42227510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2901d279a0d76a98124374af09e5680e40e71896ececc699f3bfcb69165043da. 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/CA5KR2504767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e51e2fe06125406c3ef058170a14981d12c7c54d0f84f54009b576b89262694. 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/CA5KR2504771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d62af3f137cd323ce5a6925fa62a077aadecac959b407935c4e9c2f10d492f4. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/CA5KR2504776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0955fbad7a9bd7d7fefb06184301a1406be342200719f61c2994350e84fd3430. 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/GBBVL2467507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e77caae0e1db12684e7378ea7dc0805fc9b013e1fe2d4aaf957eb70cef88cf6. 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/GBBVL2467511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007bc28c9619676bb7656e6c5b747343d8637f30b369215d04294b6dc9ee60c4. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBBVL2467508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf2caac48c68a1348377202d247536bd4ed63b5ff086d52a01400bda8c17d0a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLCK42414826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adc8afcedd03c783eaf6d4cdeabd0d29e7c17c0004eb61eec5ebd8f76806575. 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/NLCK42414831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971843883fffbabab6dbb5f11e6d755e8cc8f2b8bb0ba074458d1d24982329e1. 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/NLCK42407323.