The narwhal (Monodon monoceros) is a species of toothed whale native to the Arctic. It is the only member of the genus Monodon and one of two living representatives of the family Monodontidae. The nar
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 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 0x082ec92bc290416720e85a017454a35f8fac42b59c357b279ea01d04df0fb04b. 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/66cb82a3-6864-4df4-8862-ee68eeb64a42.json and https://artists.proofprofile.net/proofs/artist/66cb82a3-6864-4df4-8862-ee68eeb64a42.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 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 0x8c06a4fee56373ced92c0281b75146af50aa3cc4aeae9151b2ef97e79bcc052a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/AUKDT2300662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec1d3cf9a944e41eed356a4800eb3a12ad08e46e1299ded2e272528b88a4d47. 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/AUKDT2300709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b98eebddf3e178a71e908403aa6b01d820842017546f71f14510528560fc73. 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/AUKDT2300722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28367a0dbda6481055d7679bcea7cbe1bc1a5da12a7d4646637b95fc24256bfd. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/AUKDT2300815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009d88300e4a65b66135fd853ee6572feace4c5da8a00b081f0911cddc3a18ec. 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/AUKDT2300839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd41019b85266d573dab68bc12c2eeb856dd1c0ba7cf54758f27e9311e20460. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUKDT2300884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d17f0a05ea75beb52dc47f5e642b3512e4c596f6e0b09ef719c5810f7e8ada. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUKDT2300912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784c8ba6d3c7e2c4671e34d9c2bd23221dd216b7a16e7c33dffba3449ca889b1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/AUKDT2300942.
Streetlight (Returning Home Slowed + Reverbed)
Streetlight - Returning Home Slowed + Reverbed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff436009f7664fa456f9cfbec784c483b946a928af8c7c556b2d7a84ec6ba610. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AUKDT2300980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78fb9b25eb292763fcd715d7f7caddd98430de6d40ffe6c1bf6f95077a5ac70. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUKDT2400588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7155608e451cbe3610d80e8e5af7cb39309c84af8f3b5629caf21d3ff08d340d. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/AUKDT2400589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa616f342defbbdc970edcdd2958e2e317a22e47399af8da53aa319edf8d23c. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/AUKDT2400670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1233cfb1c4fc4df792a65ff6ee15c0bcfce3bcb940e93bcd448facc0daaa5b4. 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/AUKDT2400701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae49b2261ce6dfc3d5371e461e112c371d1ab07cd9847dd423b0ce4c9ad8079e. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/AUKDT2400804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fc336f81bfb9401de951fb6fb9b84beb7023f99bf5866cb9afe22ecece3a1d. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/AUKDT2400832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44162525c13a822bb1b4c7805e334f1b6ef3f5c07b9e151eb6360d0b8cfb15b1. 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/AUKDT2400904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3c043cbd304cfa6216cd444eacca1a5ee49cdc256b6dc80f84f02f21a76934. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/AUKDT2504434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624c561d69acbb9ce0a84ffe81a6eb025b7e1ffa5793a83c4c571306a79b72c7. 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/AUKDT2300581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28367a0dbda6481055d7679bcea7cbe1bc1a5da12a7d4646637b95fc24256bfd. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/AUKDT2300815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec1d3cf9a944e41eed356a4800eb3a12ad08e46e1299ded2e272528b88a4d47. 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/AUKDT2300709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784c8ba6d3c7e2c4671e34d9c2bd23221dd216b7a16e7c33dffba3449ca889b1. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/AUKDT2300942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78fb9b25eb292763fcd715d7f7caddd98430de6d40ffe6c1bf6f95077a5ac70. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/AUKDT2400588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcab892c9ada65935bd0275009eaf5f084267e8c9bda3829d152cf709e88d274. 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/AUKDT2400750.