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 0x1183d5ad064c7066497477e8ee1394c073db908e0610dadd01773b1aa3c38929. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c42198f4-07e4-4dfb-91d9-3a94b7d4ceba.json and https://artists.proofprofile.net/proofs/artist/c42198f4-07e4-4dfb-91d9-3a94b7d4ceba.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 0x52d37a023d805d0c289d80e2268d608aeab618d74f16f2784d04051c464dc364. 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/USLZJ2328603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50908b1bccd280065f4b8da74e7b8ffe4746ff19a7a2ae2253167fefeeffed9d. 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/USLZJ2328604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7eea3701e45ab780b9ddc63425c58e450a82f423eaa7c343ebcd5891c187a13. 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/USLZJ2328605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b76eb353b91f439245d83fee3c3824f40ad3671cd2ec125636b229e7c392bde. 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/USLZJ2328606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55fa3443e6a53e580f8f4180cc77fce5c8c095589ccb20d38bc3f683bd37be6b. 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/USLZJ2328608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d99e162cf13fa7015a8469c90f7d35ab8509d20171feee68546f56897b08f11. 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/USLZJ2328609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd786eaa44038ca8de6f4daf24f9ca3a96c18a825cf433795043f9abcc784374. 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/USLZJ2328610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c9ac90af7f5b74219f704d81846554a9335a76c9586c42a80517c160c76667. 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/QZDA42348113.
Our Home Our Land (From Collision Course)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88b25740b18a6dbddafb246af49d41f61464bd3d196066e3aacd79daff13310. 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/QZNWV2220446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747223c44ced80d797e19eed9d7234fe2a5ff2f58aa914d691557b8a0875561a. 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/QZES82034980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfde44c8e95d17087d8a63a182d83b4bb176ab53cd6be9d5142828bbcf9e0e1. 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/QZFYZ2087103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9234e50bdddf6948bbe2395dc9f873d68f0a49597a1fff2305265ee7b7cd6b83. 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/QZHN62011836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bb4e1462b1e656ef81fd12d7b946f092456908370a6575ca2c9a64d3d6c960. 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/QZHN62011837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fb02af39343a2371a82f846b824608b56c0ff7504c793ed319611553c68e8f. 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/QZHN62011838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3667db49501680e334bc294fc4f131267d057221814ebc6ceb616438a18699. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/QZHN62011835.
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 0x8ba5a86c15216aca924434c858142f7d856fb1646a2b99a6a5ee621a8d730c37. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZHN62011839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88ca7338f2a502b31fbb02b1bb5c18e0189dd556e8556f0dedf68126464fa2d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZHN62011840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485982e23843940a2e4839cfd39089f3a2fcf9009e4509a3081a78a44b1d67a3. 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/QZS7J2119454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36d9f785d43742e6cba2509c683a03ce67ef04a3a42c0ee8e37af52fd0acbc1. 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/USUM72222069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e57859af33d13039338819ee732854fdd71738c294a804411f58311a4c36fae. 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/USUM72222070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d528e8d258878ca3427c0ff62b343c9d5af9e53425e62eeb6e813f675cdebee. 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/USUM72221740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3832c2a11b8b2317448ea4ff8e0c864259ca14ea38fa9845e8e73e6c2b249e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUM72222071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406c0daae63c66a5704dfed7df5d4e89c77ffe8159ce27f23f93592f8daf652d. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/USUM72222076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8664717ccf99acb7fb9bdf01a4b6c9c96bd18059ed99fc6aa8764a882718cc0. 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/USUM72222078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf32fcc9a954129339203d6a89054f35202c70311c3e66f87ded7615897c6f63e. 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/USUM72222073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503aee03fa5909672b349ec91df04bd984fc3437ed298035c5d106791a3ca442. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUM72222074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37a46744349dddda27e8eccb73545489fa763dca370cf81bc7afc9ea3b10852. 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/USUM72222075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3af51fa6346bb59dbe66955b98a2d102866e6aa00699cd77655ab4bc8bf68e6. 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/QZQAY2123931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc418686c03ca7ceb78299b89361ce93387d74e1ed35c19aa647979f8aa942609. 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/USDHM1901180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a81871387826ab395b5e99a4a813dd51dee794ed73bf5642d3e34ad7988ab15. 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/USDHM1901181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaceb6d0d37a374bf6decc26bb9aecbdb5900361789fc3640c824c591153e206a. 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/FR2X42518173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbd63629a1faa2bdb8c38ba5975805c25f046891a3f00ca18fe9068824a8f82. 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/QZFYZ2537366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2f8e20dbd51f9543b5a62ec8f495918534cdd66c243821df8acd208462feca. 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/NLRD51968543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9db6f4f137291fe60e63bb345c702fffd4933e077f3d53d0815f25dfb183fee. 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/QZFZ22558740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d6de6d4f23cd047f13108145b65d1a9fc348b9a375265c559d84427b6253f5. 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/QZFZ22558742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01d0c6d5e4f66f9c1865475fade30d1ff71eb1467f735ce17c1bd9f748267ee. 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/QZFZ22558743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdccece761c06e27abcbabf3e6366e988356e1c4bb9883b42030ee42d10dae5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZFZ22558745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce294bd88ee97ec9ee0c68475b5b5e016f9e75a1293315e936876a4e8b7b69e2. 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/QZFZ22558746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e3e4fc075d44b55386079aa1b0635a7675fcaa90fb3b2a99bfb32976ed7c0c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZFZ22558747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb93c86a6b55c0c426f3f94a1e938ac3c73cc6014a0b46edab9399dcf6030164. 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/QZFZ22558748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44486dbf5c6c57e9944f8b80e064fa883372c43bd27bacc78874605158b5b6b. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/QZFZ22558741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44ca260306e02e62c9aa9c6e56318cf1075e8f67e951c89e72fbe629d8d3648. 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/FR96X2597041.