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 0xfbe47fff65250eb01cba3801c636c57164d36b80b55c03dd0237ddde4d280c1e. 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/c3691792-71b7-4382-8cbd-af772272e202.json and https://artists.proofprofile.net/proofs/artist/c3691792-71b7-4382-8cbd-af772272e202.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 0xcca5e3426b5f460edd00a00302dffc0f90c2b21a36f60593645befc2e1663bb4. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:53:05Z), 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/AUXN22100429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c614a45a8aeb5b1240217e141931fe7c2f29b30aef085ad20c21a34dc64c4e. 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/AUXN22100431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc26bc7d17197e5085b921761e153ffca1aca8b84a8ed20eb57baa97c965a27. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/AUXN22100434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fc431251ebbbd146396ef8bc126d21d4f8555707d1c9694cebe868ea2234bc. 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/AUXN22100436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af352fbf01a48bf653787827d25a6ff6a4971647d39633b78d55ba1c893c88b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/AUXN22100439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb72a97ee4375e3d4d5b1c877f4159ded26cfb4cdbdaffdc466f224f2125f3f. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/AUXN22100442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960f6366a8e3ec1c4879d030c1083c3ef5e630e297a7b1107bd1cf6235c4752e. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T05:28:41Z), 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/AUXN22100455.
Ultimate Classics: Greatest 80's Hits Music
Your Love (I Don't Wanna Lose You Love Tonight)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a4df3f7dc255fc83a27e797042e6767d9eeae6913eed175f76b2ad4eb527be. 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/AUXN22221021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92c316c7e80475a5ab950282c9805390721942217c0df008af3d2d492ce5528. 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/AUXN22221022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247294555366a52aa1b77481b7f9f3912bf4e6f5cfbb3a6bc50173bb30159190. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/AUXN22221024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30618a26ab56918820115cecd68e867101704d7543c80b13ebdd58c3ed457c4. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/AUXN22221025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99c975d6593301a9a4e92dd9cbf97b25fbf3c97c595b72f75ae6dbd3e683d08. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:00:27Z), 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/AUXN22221029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67def656b1354f95a2e6b76e1a5151897a0cc619b17fac83b49309d36e3574d. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/AUXN22221034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38d7ce1f45e032021da462995bf907b44d30eb71498a304009b528fd4cf52f0. 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/AUXN22280817.
Africa (I Bless the Rains Down in Africa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cc62086037abec3f668d0d82fb7f6fa8cd544804a9fd75d1c5d52b24064c1c. 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/AUXN22336996.
Celebration (Celebrate Good Times Come On)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63daf354a4370c9708f469998373e1085feac63f539f2af3194809b55479701. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/AUXN22337003.
Running Up That Hill (I'd Make A Deal With God)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6ce10474cfb0143ac49d6251667bce23bc608d1e7a9f84a64936257ca43b63. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AUXN22337010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f12393d98db6a583bc548f4bf5cc68f946d97fa1a9820ca5354bdea7e3f3ece. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:43:14Z), 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/AUXN22337011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1349ca5ea25222a4baf2dc1a1b1ae772aa95535b0d006a830ae9d50c79fe55bf. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/GBWUL2386118.
Sweet Dreams (Are Made of This) - Slowed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2a35a096ae716b0826e8163daf0c54c67e7feca151cc69940e8f1a18690ec3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTV32347585.
You Spin Me Right Round Baby [You Spin Me Round (Like a Record)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a629749de0c24a7565b02cc598c7a59858e348f8f89e2987dc938606122ca7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUXN22406216.
I Will Be Waiting Time After Time (Time After Time)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdba597a6970a621747b0217f51ea8735aef16700ecf34883d86015d1babbc4d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:45:06Z), 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/AUXN22406197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2de4f5c545ff98d9a5a18444b83e5766a8a3eb034e993bb7753d8617e73040. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/AUXN22406567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6294e4af6121c650eeada420bc96bc037b9b8e374dcaefd46e91b1af0b6cb47. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUXN22276670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65afc2446c9410445286ebcc9bbb29f97773ff392800fa538f6e80fcdaa07f8b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUXN22276671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150ef7e91062434a25ff66a84d4fe56aa539207e9b2698382450f8110d18bd51. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUXN22276672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5715bc94b659e3f7f1d57924991cfaed6b2756878b4002088605842e7e11db. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUXN22276673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395edab0b87323e0ff828c35b3fbae5d76f04de223ceae9a3427897a1edbabc1. 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/AUXN22276674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89d897ed1b614b4e25aafd9c94258cf55712eb3b367f8d6a1b650901a6e4b8d. 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/AUXN22276675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb891414c58579b27deeca9adfa67add3e7c0a37da7b1f559b191a8648431ecee. 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/AUXN22276676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca6d3d6ab41c2a6614f72eb9c88e3e84d3ca82392bbaff61a677ff8bd224a029. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/AUXN22276677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a763f333d777e87631d218c7c147e16a723cdd56aff2a9069374b111ad4938. 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/AUXN22276678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97fc56c027a1a436601a9b3e1e5648c094c94aa8d320e093ca7f7c7f9e541279. 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/AUXN22276679.
Everybody Wants to Rule the World (Sped Up)
80s Greatest Hits: Sped Up Remixes, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1dd2b787e9d5976a51664fc88fa788f24e66c68272ebb1938ccf89c80fdb64. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/AUXN22280004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f95d12470a05e83ec90ccf980d0125aa9469828cc60519907d3250395d7a0c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/AUXN22280006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c22a2e8fdbe1d0cf0fa0a171e5dca0ec7998b0931b14d660f5ba630fcd2b660. 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/AUXN22280008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084906381add4a16dbfdea1fd657c64e2047aaa6e835524a9743d46aeb7bca3b. 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/AUXN22280010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1dab1253e1bdb4c42689723501421fa53bafc3c2ba1662acddfd49f990a0de9. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:47:20Z), 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/AUXN22280003.
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 0x4572ba9128224a1c2f3c08096fb0459b1a12ad192a347bc57489f4710c4d8a65. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUXN22280002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd58f9aa52ddbc3437bb3bfbe18c3fb78c1ac5b21bcee9c89a62dbbcd39a670. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/AUXN22280005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb73e4cfd3b28389ec16dabc1389f10def356f8e609041c7b4dd4ffb1ef22eda. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/AUXN22280009.