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 0xf0c1cc5108e820f416ee20cf527d49c3d5412db7a0ad2a94080e86395b7b170d. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9e1d2aa-5879-4093-a4ef-ddc3e609f44b.json and https://artists.proofprofile.net/proofs/artist/f9e1d2aa-5879-4093-a4ef-ddc3e609f44b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Welcome Back to Midgård (feat. Oskar Clase)
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 0x663beb3c7bbab648bcde9759bbbec8b927edefa27c65a3072c8d9a8a3ecc1d56. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCACG1553305.
...and Here's What Happened Since We Last Saw You (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103789d951b4b41da1a9cb57d1ad2ede57314d0e3e9139f4c69bcb6f5d6c2c2c. 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/TCACG1553306.
Learn to Spell Again (Are You a Wizard?) [feat. Oskar Clase]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdefe462aa4e317e51406ddb0f8b5a8a2f470f8e32135109ede53b9362e71f8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCACG1553307.
Interdependence Celebration (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b83fddff604e158c5ddd387b7c91e386b2f3c850789884b1b0287b9d2495ae0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCACG1553308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc1c788ee3ad64bc3d1e6977badb29ea305b9c5968ca4189df483b9addddeb8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCACG1553309.
Time to Get Your Socks Wet (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664bd42cd652624c4a1c4e3baece50784e7eda74049651a3eff7bd20d152abb6. 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/TCACG1553310.
Searching for Nostrir the Soothsayer (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c10c9a40174f9772c13dea734ca0f7c2f7704b3db00a16ccb42386e3a00322. 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/TCACG1553311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1edad0800beda43523c60257bca0730af8f7edf4606b473757cb57e119eea883. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/TCACG1553312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0035d4f7d5380107318695e838520b8442020cd5b6f87967576e97e1697ff49f. 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/TCACG1553319.
Veidirtorp Is Still a No Horse Town as Always... (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f2d3fa19059e541ad1244c711c0bb7e38a2486ddb5657334e0d249f0606ec9. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:02:11Z), 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/TCACG1553320.
...Except Now We Have a Bar! (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1368a1282f3bef709099c0cac22c30340e1e8a587c948d5d102f38bc5976a948. 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/TCACG1553321.
Outside Castle Vanirhall (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44549dfd36aac0806ff136114b1915672daf71ddf93989d6d3a962401b125697. 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/TCACG1553322.
This Is My Final Form! (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30ed02e64423220ffcbcf2ebac6089bcab8a678d9bb1875c047eed713286595. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:21:53Z), 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/TCACG1553324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3d9a6289c464a23792180c3a7d0970b962a4ef4fb0e8306441ec2ee81c842e. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/TCACG1553314.
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
Mountaneering in Higher Higerlands (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8330708761adfd66c5b323a9ffd6f527ca722a9b147344e25097fb74e7f43f. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/TCACG1553315.
Metaxas Is Laying It out (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac67c2730274963966a1423ae4f5f0189198bc3df4232022c57c75b3ac52632. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCACG1553316.
Vlad Is Sneaking Around (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831c8059bb460ed6e4cd66f41629fe1ae2efde8a548dfc8efa9fdc3a8c915ccf. 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/TCACG1553317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31efb969e4ac9e783163d69a97f8a079e237815dd6118194c13418c3a41895e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/TCACG1553318.
You Maniacs! You Built It up! (feat. Oskar Clase)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb760dd20348352e771b2e313cf60ab2ebdb512d1a761024fbb2208cd6b8c748. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCACG1553323.