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 0xd88a074459af4c50fbd0aef5ce56873bd951f33972fd8a4d4c9df80e6308a97a. 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/b4139005-1e8d-4ec6-b7af-068136f394f8.json and https://artists.proofprofile.net/proofs/artist/b4139005-1e8d-4ec6-b7af-068136f394f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Real hiphop - feat. Earl Sweatshirt, El Cousteau, & MIKE
{"copyright_id":"0xecac1f715b18292d1d184fb174e071cf7f9769ec4115d9fcf2ef86c47186a094","isrc":"GB5952300449","name":"Real hiphop - feat. Earl Sweatshirt, El Cousteau, & MIKE","registered_at":"2026-06-05T17:47:23Z","spotify_id":"7eChRaYIQxR7pNIR3W07dC","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 0xecac1f715b18292d1d184fb174e071cf7f9769ec4115d9fcf2ef86c47186a094. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7eChRaYIQxR7pNIR3W07dC.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/7eChRaYIQxR7pNIR3W07dC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1bc21e9c7f5fbb1b03ebac79435d2f04663c8daef739ebf522842cb469316f. 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/3hsMgDto5riKNTHnrlTGLd.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/3hsMgDto5riKNTHnrlTGLd.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3892fea050ab94358d8995f226cf2d35abd2f8eda72e8077e012327186fa00. 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/5OGqcCVbPUB8mdW2UvTj58.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/5OGqcCVbPUB8mdW2UvTj58.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed656413814101d8090c5dc752ab7903f50dc2daa00e31a53b1923e3f718530. 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/5hDlEjDke1xHdNZ026hdpj.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/5hDlEjDke1xHdNZ026hdpj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26669d42c415e48601d8d118f7f6bd4103d10a59e3f67ed9b92407f45dd57922. 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/590oZDtzasWRL2EZNQyzVV.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/590oZDtzasWRL2EZNQyzVV.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8930abe1ddd22245871950fd31e62bd605f71e4d4d3f8ff4887c9b9e276961d3. 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/44oZfcQ6j7WU3peaUbDo19.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/44oZfcQ6j7WU3peaUbDo19.
{"copyright_id":"0xecac1f715b18292d1d184fb174e071cf7f9769ec4115d9fcf2ef86c47186a094","isrc":"GB5952300449","name":"Real hiphop - feat. Earl Sweatshirt, El Cousteau, & MIKE","registered_at":"2026-06-05T17:47:23Z","spotify_id":"5GVS9xB5MGFP4BKvuvIEJd","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecac1f715b18292d1d184fb174e071cf7f9769ec4115d9fcf2ef86c47186a094. 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/5GVS9xB5MGFP4BKvuvIEJd.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/5GVS9xB5MGFP4BKvuvIEJd.
Lifestyles of da young n nomadic interlude
Stuntin’ like my baba - feat. lil peanutbutter
Triangle offense - feat. MAVI & Sideshow
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce9ea62ba2117fe4c23c37b11f1c580c0d12b7e632dbfb09015bb75e396237c. 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/5IPSlwgpJskSg5i7m2JAmr.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/5IPSlwgpJskSg5i7m2JAmr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5820f63713309e577d4d98cf753de1de9a72777cfab4cec6b27d7e68f2e7084b. 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/6GBOYk7PVasRjnfPtNEDq4.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/6GBOYk7PVasRjnfPtNEDq4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306d2759c282240f29f2ed2c94d47b5c11a94b3471b64f875d38cc12e377235a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5M6TrTPOjyVPffKQOUR8eJ.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/5M6TrTPOjyVPffKQOUR8eJ.
Mussel Beach (feat. El Cousteau and Niontay)
{"copyright_id":"0x47905ce575981b1219c9a72c983d3e7dbc79a486c34e481edae07c101005a41a","isrc":"GB5952300385","name":"Mussel Beach (feat. El Cousteau and Niontay)","registered_at":"2026-06-05T12:29:25Z","spotify_id":"5fEOmc3VPod6dTPEu7frHI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47905ce575981b1219c9a72c983d3e7dbc79a486c34e481edae07c101005a41a. 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/5fEOmc3VPod6dTPEu7frHI.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/5fEOmc3VPod6dTPEu7frHI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a703503043ba02a3a252281b7fd723dfd1b1d530a2db3bcfd4a684e62db88d1. 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/4zG9E5WW46ugBwME7fYo0i.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/4zG9E5WW46ugBwME7fYo0i.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe435f1e0433290f2d10d5e25d50266aa7b1159b54a28d71210865d478e175726. 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/6sarQFnLFHKUQhLgPIXpqh.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/6sarQFnLFHKUQhLgPIXpqh.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989db4a5994471074f545448cba4f6380fe7dd94418f4b890fdac9f14b123d19. 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/5x9ym2BnstMSyP7TQ2C9i2.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/5x9ym2BnstMSyP7TQ2C9i2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940c946452c1d5871d5962a4f5488e44e9b887d25d3f6e6c64bcd7d338cde0e5. 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/4IlFxUy7SQ04d2LoSKUqbF.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/4IlFxUy7SQ04d2LoSKUqbF.