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 0xaba9887aea9141dca3f74518ae70eeaf4d723d72fbec70f0276c9c0ff3548c62. 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/b67f9fdb-8533-4453-b7cb-ae4ddf43c224.json and https://artists.proofprofile.net/proofs/artist/b67f9fdb-8533-4453-b7cb-ae4ddf43c224.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 0xa99d22a910963901eaa0cbaaac98d72105d7698572e6262ec7d7acd50450657c. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZES61925617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3469dc0a3d4efa53440c9025be5f9b7963f4d6d8c5f389465bfff2f60fa6863c. 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/QZES61925618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75d5ffba5e6c951a2a546989bc2ae7bc0360e5935b8463c599951dab9afb018. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZES61925622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c2ca2eaeed3991554a3714aed5c4dd79095a43abae08cb79bdba9af8a3bdd6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZES61925623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737678548b36a808d53095c52c5e4e49cf6eee8d9707b6ad7ab48c4523cb304e. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QZES61925627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2445f79998aa2ea8cfb7e3e1aaff245cbbc3e9133f442715f20f0de426aa508. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:18:51Z), 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/QZDA82034558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba8ab55bbc8e451638f960743604544579a4add06e07aaa9f5fc59359e96c7d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:15:28Z), 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/QZDA82034559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a6ba1676feded02669dd7632c11b1c046191639103966e01179a2e8db8cd0c. 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/QZDA82034560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678e8a3b5d7935b0478529aa1c5802d33016c20213099111290454450a7d19bc. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZDA82034561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ad5dd0cfe5b0bf06c525fc9c9062695ed10661bff8eddc7f4e647e006a72ba. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZDA82034563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea5913d859a83202d509a867342f05df0a470b01a52d31d84eb4666b640d559. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZDA82034565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf259a29723334a80d203f2cb456dfb3cc0eed231d82a10e32dced6f3d0bdb406. Chain 2 (Bitcoin): anchored in block 957671 (2026-07-12T07:35:31Z), 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/QZDA82034566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96439d7a1855c93053d609e1b028bcce7fe2ecfa87aad80689037a7f8380de4d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:09:49Z), 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/QZDA82034567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ba5a7a1ed4de8e767b919f9d638c2509902e238e9de03340eb681ef1ffc3e7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZPLR2099047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff0c055acbe3bfd4e1732438761acb47c730fc58b31f5b27be3434e746cd5f7. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:02:20Z), 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/QZFYZ2149274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18e9e2371e75e50ef1ea28935b965d1e34852990e4fe8b4ff2ac2ffbaa33fe3. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZES52509301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a4d94b1d36283c97fe1e5a60254346872ef19617c3f1492fe10e9c12ec7539. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:49:36Z), 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/QZES52509302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539fe95f510987699a3eaeb55354fc386effd9f55f9f06572d5a1a562b2076a8. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZES52509303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9d57e3038f045df1c0923ea5924f2db475d0c67ce0abfab075e4c2c0ffdeb1. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:22:27Z), 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/QZES52509304.
Kisâkihitin (Indigenous Meditation Album)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a74b531860639e6eb58267b7f6c6c0f640d7760e1bbe3243cf27382c0eec3d. 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/TCAGQ2247694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae014717b9d8c08a9c19fd8380aff48dcbd9f169ed7c2cb55a1885beb55d8165. 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/TCAGQ2247780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa34636ac81d736bcf1ac893c11980c1a580c011174b6174b1fea960e6d57ad4. 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/TCAGQ2247754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0139da93f92afa8e1b89ebc32efd18ef7d03f75547ba80f1348cb71fd0c8a0a0. 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/QZMER2178657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1875f7e17a40a285c0a2e5275f06ebb10eeb8e561b3c6e821207561a39dd818. 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/QZMER2178658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53db09164f47f994abaa1836935df28d9480fe46c107aee6f2191edaa7e5f6b0. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/QZK6L2488025.
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 0x1fef67da7b0590c38c1336b4591f0a7916f33b0eafe81aded35f858de0982089. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNWR2272324.