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 0xfb4e3e86ff762b2c02bf8f6f30c2bf09ae3964ba385ec2e2f5f8728780ca217b. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4ea6c75-8c2c-48f0-a1f3-5d74c1c34476.json and https://artists.proofprofile.net/proofs/artist/a4ea6c75-8c2c-48f0-a1f3-5d74c1c34476.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 0x40f567dcc94dd1214814f01fd2fbef0cf7ba873c8a38ae6a9fee17f02277db9e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBSMU6597267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9fde3c845e5a28a40cbddaaf0bb4a4ce512a1ae3966d6c8be3d9f520c12709. 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/GBSMU6597268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb168c1435b4865845f7d462aa7d96999ab097fd4265882ecd745986eb9bdd9. 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/GBSMU6597269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe752d02673f1091fccca53402feae10ff8b04f7a7b9d471cc89562cada42ad. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBSMU6597270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde34a6f872b08352d81e2ab591a226d809743d5af2337adaafce7db21ada04f5. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:08Z), 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/GBSMU6597271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba6ffc42bebfe4c8e6893528bb166436adc4f0dc657fb2bbc2a5c6097a987e6. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/GBSMU6597272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cc198f80ad09fdd1bf43b2f0b6b489059419e50c1322a6e0318223d617ac43. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:32:33Z), 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/GBSMU6597273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf401b77e0e17f320ee960b84adea3f38970967a7cb70159a8188eca117c78c9d. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/GBSMU6597274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8594505ea0e45774110e244d97ccf50d68f3f6acd48a28e5fbd88ea28e5f5adf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBSMU6597275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ce540dcd7e7845919ebf28972683634b37b1b2bb554b41ba4f51f321a8d97f. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBSMU6597276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc82380d0b1f66a97df05e57cd8451c679f253eadffb6c8c39c4bfe0fbffaec7. 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/GBSMU6597277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e4bfda8d9e60d67aa5450cce448800f176ab1cd75d6b92647251f96e5520e5. 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/GBSMU6597278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fd7559884ac39b438d003ec07605c8fa749e716f0392da4fa62e614e8d6266. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:25:19Z), 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/GBSMU6597279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2938200a1d2a9078ef8ca4f74d2d0d32886a0ad041931f022c34f4296852fd50. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:50:28Z), 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/GBSMU6597280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba867bc4ea2d7082046c197e36c1bedcb490893346fdf3c57ea6c7a70961714f. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBSMU6597281.
Backdrop for Studying - Tranquil Double Bass
Dream-Like Music for Work from Home - Double Bass
Mysterious Jazz Duo - Background for WFH
High Class Music for Dinner Time - Piano
Jazz Piano - Ambiance for Work from Home
Jazz Piano - Background for Collaborative Projects
Bubbly Music for Enjoying It All - Guitar
Guitar Solo (Music for Gourmet Coffee Shops)
Backdrop for Classic Meals - Trumpet Solo
Music for Ordering Takeout (Trumpet Solo)
Tranquil Brazilian Jazz - Background for Focusing
Piano Jazz - Ambiance for New Experiences
Entertaining Music for Vacations - Piano
Music for Chilling in March (Trumpet and Alto Sax)
Quiet Quartet Jazz - Ambiance for Silent June
Quartet Jazz - Ambiance for Spring Bliss
Music for Settling Back with Coffee (Latin Music)
Latin Trumpet - Background for Settling Back with Coffee
Music for Thoughtful Time (Bossa Guitar Trio)
Music for Cinematic Senses - Distinguished Latin Music
Music for Settling Back with Coffee - Astounding Latin Music
Music for Tropical Stories (Latin Music)
Music for Focusing Tales - Bossa Guitar Trio
Jazz Piano Duo - Background for Soft Minutes
ジャジー・ウェルネス・ヴァイブズ