1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x0e29e61fe7815ba51319fee2046a7c064b8d3258e55e471b740b6a75e6ad4e04. 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/978014eb-401a-4355-9ea5-9ec724afcd37.json and https://artists.proofprofile.net/proofs/artist/978014eb-401a-4355-9ea5-9ec724afcd37.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
water people (kandiya akul hoilum) [nadhi kara oram]
quizas, quizas, quizas (para Patricia Camacho)
hope is the thing with feathers (for Camille Colatosti)
our mother is our daughter is our mother
Om Supreme (feat. Vijay Iyer & Immanuel Wilkins)
{"copyright_id":"0x540f6b7a7f834b699a77d086462071c1b06ad1356d41bec664d8641e1f1e5f70","isrc":"DEXO22454673","name":"Om Supreme (feat. Vijay Iyer & Immanuel Wilkins)","registered_at":"2026-06-08T13:31:23Z","spotify_id":"2lcmMbNGKgCsM081mwdE36","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540f6b7a7f834b699a77d086462071c1b06ad1356d41bec664d8641e1f1e5f70. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2lcmMbNGKgCsM081mwdE36.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2lcmMbNGKgCsM081mwdE36.
{"copyright_id":"0xee642e560575067c80c60e559aaed1e57d8d6d855606ab8443e6fe8b6ccbfe43","isrc":"DEXO22454672","name":"A Love Chant (feat. Esperanza Spalding)","registered_at":"2026-06-08T04:39:27Z","spotify_id":"6VnAGy9O7kc9Z5zFZzDO6X","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee642e560575067c80c60e559aaed1e57d8d6d855606ab8443e6fe8b6ccbfe43. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6VnAGy9O7kc9Z5zFZzDO6X.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6VnAGy9O7kc9Z5zFZzDO6X.
{"copyright_id":"0x540f6b7a7f834b699a77d086462071c1b06ad1356d41bec664d8641e1f1e5f70","isrc":"DEXO22454673","name":"Om Supreme (feat. Vijay Iyer & Immanuel Wilkins)","registered_at":"2026-06-08T13:31:23Z","spotify_id":"2h6CaGmzAO5AMvXrX5ORwG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540f6b7a7f834b699a77d086462071c1b06ad1356d41bec664d8641e1f1e5f70. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2h6CaGmzAO5AMvXrX5ORwG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2h6CaGmzAO5AMvXrX5ORwG.
{"copyright_id":"0x2af134c6c0ff55b188085b958a93f45e76d47c8e4c66e91b8df1be9528f76cf7","isrc":"DEXO22454674","name":"Prema Muditha (feat. Shabaka Hutchings)","registered_at":"2026-06-08T04:38:57Z","spotify_id":"31WxprmrDIc419g9CiOrYq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af134c6c0ff55b188085b958a93f45e76d47c8e4c66e91b8df1be9528f76cf7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/31WxprmrDIc419g9CiOrYq.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/31WxprmrDIc419g9CiOrYq.
{"copyright_id":"0xd12cc126c03ff3222471e5e0b44e28217fba9b256bba4b9aceddd71400db2b28","isrc":"DEXO22454675","name":"Elders Wayne and Carolina","registered_at":"2026-06-11T15:06:48Z","spotify_id":"5V8DnVUnVWjSe4q7i1JNjw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12cc126c03ff3222471e5e0b44e28217fba9b256bba4b9aceddd71400db2b28. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5V8DnVUnVWjSe4q7i1JNjw.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5V8DnVUnVWjSe4q7i1JNjw.
Om Namah Sivaya (feat. Charles Overton & Ganesan Doraiswamy)
{"copyright_id":"0x74c05527480e3a877365222d431188767fc990774feb73c5f8b8f910b490365b","isrc":"DEXO22454676","name":"Om Namah Sivaya (feat. Charles Overton & Ganesan Doraiswamy)","registered_at":"2026-06-09T19:15:29Z","spotify_id":"0DydWs9wtTN1wNKGAM9Upi","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74c05527480e3a877365222d431188767fc990774feb73c5f8b8f910b490365b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0DydWs9wtTN1wNKGAM9Upi.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0DydWs9wtTN1wNKGAM9Upi.
{"copyright_id":"0xc7d08b7b36433ba06b37e96699bd517791cb2dd97811e09989e87f463eabbb0c","isrc":"DEXO22454677","name":"Journey in Satchidananda / Ghana Nila","registered_at":"2026-06-09T10:21:50Z","spotify_id":"6wJCxoXL3yDozWjM00Xc9R","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d08b7b36433ba06b37e96699bd517791cb2dd97811e09989e87f463eabbb0c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6wJCxoXL3yDozWjM00Xc9R.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6wJCxoXL3yDozWjM00Xc9R.
A Love Supreme Part 1: Ishmael Wadada Leo Smith
{"copyright_id":"0xd35ac6de1fc6019db35537ae3f4745d178371bbff4e13e8d10216481ff869bfb","isrc":"DEXO22454678","name":"A Love Supreme Part 1: Ishmael Wadada Leo Smith","registered_at":"2026-06-10T19:42:52Z","spotify_id":"4v5kJH9T9SZNTB4zO1ae7C","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35ac6de1fc6019db35537ae3f4745d178371bbff4e13e8d10216481ff869bfb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4v5kJH9T9SZNTB4zO1ae7C.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4v5kJH9T9SZNTB4zO1ae7C.
A Love Supreme Part 2: Peter Sellars (feat. Peter Sellars)
{"copyright_id":"0xdc72b901bd94f425f5b353b3c1381ad2feaf765d4ca84cfc12936d4e963b54a7","isrc":"DEXO22454679","name":"A Love Supreme Part 2: Peter Sellars (feat. Peter Sellars)","registered_at":"2026-06-11T16:25:30Z","spotify_id":"0GCnk5plwZtvY8rnWx9lYk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc72b901bd94f425f5b353b3c1381ad2feaf765d4ca84cfc12936d4e963b54a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0GCnk5plwZtvY8rnWx9lYk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0GCnk5plwZtvY8rnWx9lYk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44c5368231267e76798328f56394f6f845fd52840f9617a0c5501f6d2bf41ae. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T20:36:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/43eVW8gbCoYr6u7XeCgfxU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/43eVW8gbCoYr6u7XeCgfxU.
A Love Supreme, Part 4: IONE (feat. IONE)
{"copyright_id":"0x7bfb546112e47fe571a3c7a209e04f02d3f6b6b1c7eac9bb5fd3000b5aaaab82","isrc":"DEXO22454681","name":"A Love Supreme, Part 4: IONE (feat. IONE)","registered_at":"2026-06-19T14:02:36Z","spotify_id":"0XeFg7iTrgsPQGblUPts2a","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bfb546112e47fe571a3c7a209e04f02d3f6b6b1c7eac9bb5fd3000b5aaaab82. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0XeFg7iTrgsPQGblUPts2a.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0XeFg7iTrgsPQGblUPts2a.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7a90a37d0d78b199f75d7f2885ba7a3bc7b65318f8812c0be6b44b3257de54. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0GeTuCESK2xz4W1xkismza.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0GeTuCESK2xz4W1xkismza.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc985b5a5f68feb8dbdd515141d6c1f458f4d444addfc625e2b1a0480fc5de3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5cveAcliDuKpHcqBJCpEJW.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5cveAcliDuKpHcqBJCpEJW.
{"copyright_id":"0x9f7a90a37d0d78b199f75d7f2885ba7a3bc7b65318f8812c0be6b44b3257de54","isrc":"CA5KR1805193","name":"Kites feat. Ganavya","registered_at":"2026-06-25T18:29:44Z","spotify_id":"0x1ssFcc7BrDNuby9pzMux","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7a90a37d0d78b199f75d7f2885ba7a3bc7b65318f8812c0be6b44b3257de54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0x1ssFcc7BrDNuby9pzMux.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0x1ssFcc7BrDNuby9pzMux.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230af4ae5c842a98081998cc0717161861b0e6fdedbda997580af6deeeb6f454. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6iOSyZGzNAuFyFwIsDKJ7w.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6iOSyZGzNAuFyFwIsDKJ7w.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x076bbc731771fa4f3e5b71160f750091035a0118caeb5e27aeee459d1af43263. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2w6ucxW5VAyxRQwaAi7U48.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2w6ucxW5VAyxRQwaAi7U48.
For the Birds: The Birdsong Project, Vol. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8068292e49b7767484827f04b631b9def5bef285577b38f88bf9431564b292. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0RdCQoxadt6i3mgTzpa3TP.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0RdCQoxadt6i3mgTzpa3TP.