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 0xad11ad1a3d6f62e1e805b09a1b74a0006200c40e7131ebde6411b4d1831290b0. 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/a01b1dba-3bb5-4fb2-a3dc-ff65da8694a4.json and https://artists.proofprofile.net/proofs/artist/a01b1dba-3bb5-4fb2-a3dc-ff65da8694a4.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 0xdbc0d1f485dd18cc2eab419d057b9be082b9a407e736069487ca8862b5158204. 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/DKER60700401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9f450191b7421d48dcdd868935cdbd64ebf94f3196092d1524757ced38602f. 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/DKER60700402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42d8e1ab137ffe34a5745defe012e0112c3ead3a5e90771674ebcfbcfa676fe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKER60700403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee0fc0459e00709074cbd7ea72faf4af65911713693b0146cb98ec7348fe756. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKER60700404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5fdc290933f20ede90741caa76a66fdb2ef3276fed6f951cd1ac60901d0837. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DKER60700405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a6976a21d54a0f095db9ee75abb1695f0d1b97d8373c0ac001aff52c3715fd. 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/DKER60700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6453b41505430dc73cf36aafa5dad1608f89d5f609fb6be403cedf382d70a7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DKER60600301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d6c4d2a55cb039be652e10c084a5463e9ef0cbf909ddfd80293c3a8726cd2e. 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/DKER60700407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7c8315bc1b522b4ea5e241787b4870426f6bdba3a0705ec18a0e88031783ae. 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/DKER60700409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ac7267bfca962cf553f8e882b2bda49b35076a3c600d8f71eabd9b63484014. 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/DKER60700410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9599d1aead56042b53cfb3b15b3811364bfe6d17bb88431a3881502936dd729. 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/DKER60700406.
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 0x1e6131b6a01053e643978a8f3ee7ee0d90c3f6b2beb73451bf289dcfe0785449. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DKER60700408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692e4d4a6f2a26085dd7c7c9790c092a86a74a621678cf87b64749fee251bc4b. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/DKER60700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b989a84092e04f2287dcb6def2f1167df7c340600e93b3cd8392b3a1843bc46. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DKER60700411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bfe30a7bcee50bd5780aee60efd9871c6c8a3baf39463c967275c3fa4f1ccdf. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/DKER60700412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bf4553fa91d8ca75fb05f18ba068f95b24c161745de226f452b7319f8ea24d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DKER60700413.
Hvornår Kommer Du Tilbage (feat. Pappiman)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdca6e5f6ff3d9b9af01b8fa6365d06732ea2214774a8027662b719eb99d43f7. 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/DKFD51315004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07e39b6b91b9bb5b7337196ee649c2fe3a2d7f3f47f24a8b0cd60ddae93ed87. 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/DKER60801201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05440028fba007c7cb76fce54916c7a5bccf75ce55dbc7d03468dcd0d6c88792. 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/DKER60800901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4ec2bd4a9162b92553e3c66a8049c0c081b360200716291fc7560915be4482. 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/DKER60701002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3135ef370add5cdb9c9469f4a0bb19ba09286a918b6f5b429933ae1f1449442. 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/DKADG0700128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6364f7cfecf6a0c8f53caeabf823fdd832120e6cc128db68ecc95e403cb13611. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DKXV31300910.