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 0xfc2bccdf2c3fd4d3e837c486894b80960954b80da073eaaf193880cb59f964d2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/281e39fe-1268-4760-9876-bd54980734d6.json and https://artists.proofprofile.net/proofs/artist/281e39fe-1268-4760-9876-bd54980734d6.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 0xa79065682045b8f6b0206016e16ca1e058a95678a28b2a3262716fa78382c0c0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ7D51701514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a4081d7f2f5f59fe6744930d338af2c699ac007e4a9eed44f170c2823ec437. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ7D51701517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e45a3f279029c04192415afeacac8317fe9c03883d2d557d7f2e3e9166eea5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ7D51701522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e404c3cb18c0106477085db83cc63f00b0558f88c0ce1069dad0a9a37c90684. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/QZ7D51701515.
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 0xe1b2c4ffb22c18d0006b26fc2fc16b0592ed636080f94b5817bb5db85a81163b. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZ7D51701518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde04d43a181dc86463a53d87f2ee7f4e9bf950e33cf53aec789b058655f16d7c. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZ7D51701525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93782e754e336681a0a4cf5c14f085189470d6c9b4274a90d12dd17e53c1bd7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZW9K2410189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7767faab66216177819a578bb9892cd8653fb9116c9ff43eb652173a19fea8e1. 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/QZMZ92444481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bd68856e9823fd2d50757672f3ca5ebe2efb95937c44d90be980a5a9e16d51. 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/QZTPX2333500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce6a00ed0e3b09a18fff7afea3acc2fceef6a3f40562b5aacd1a52a7004a804b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZPYN2371869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b1bb2c45f24861768b615231173539f20def755bda1fa2f78f7e284a07111e. 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/QZNJV2346066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3c4f351496ffccbb88d1cd46e0a83e9706fca0d336a38b7539d84a7b1dd1c8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZSYP2229301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c498a3120605a0d396665afba7ee793a71c04fecf7cf718501063da864b237a. 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/FRX282291830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7dae5b9b149972766905a872597533bf81331fa31af80daf64e794d01ab1f58. 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/QZQAY2200466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85651cb1a472159d2db01bd93daf74c077d7917519b596e80937e4762caf0810. 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/QZQAY2270934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af17843ebb13ae95253690b9ecc49de1b6082a80d0e547532c01c1826d655a9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZQAY2200872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899e4b218270c80c1bfd3bf599e6a1bdf7cf23cd03b5c46d1ea1075cbe75aca7. 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/QZNJV2361866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c5f9ae50fb1f55767e6a90b0997e879a63de4d391b4bc89df322a450f00d08. 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/ZA56E2100968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce318a36959bd3f5448864be7b27fb21b579c564a6dd78080e559e7983237ccf. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZ5AB2033885.
Dah! (feat. G Nako, Joh Makini, Rosa Ree, Khaligraph Jones, Moni Centrozone & Stamina) [Remix]
Dah! (feat. G Nako, Joh Makini, Rosa Ree, Khaligraph Jones, Moni Centrozone & Stamina) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0956de065913bd608f6d2d8b8edbf16f2f0b7ea4baf4ecdeb08eba03902952c. 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/ZA40S2400573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b7f39bfd4afd680458827505db1fdf82e5d4db3d113c4f129a64252427f2a7. 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/FR2X42061488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18edb61c586173a0a306edd6934160da40bd6bbd52a5cfd6405022c807839a4d. 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/SE5752191734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8e64ecde1d883777965a74925baf370414b0aa2dc9869d650ea54513bb4fa4. 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/QZJZR1901626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9994c849ae1cf66c56f975ce22934b60cd0de5c47d23bcee41702bb44547dde. 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/TCAHJ2343953.