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 0x37497acea318f0cc224d6e27355ececafbdf57c6d41177d0a22321144cbd832f. 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/d453eadb-d5d1-454e-8737-5b0aa540875a.json and https://artists.proofprofile.net/proofs/artist/d453eadb-d5d1-454e-8737-5b0aa540875a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sig Mig Hva' Du Ude På? - Dansk Melodi Grand Prix 1987
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 0x19c551d10cda033c561be403bae370a60d9959928602ede97eaf79870b6bd93a. 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/DK3S72001301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35c9853fe3b60ab43cdc3a63aae7e1e0d8c40e5a2927482f25d8550c0700249. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEA669800133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dda0bcd69626067f929b961d854a4e66e1a8e222d1fb17b74effd28eef7e862. 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/DEA669701030.
Dorthe Medley - Der Graf von Luxemburg/Er war Student in Heidelberg/Jeder Schotte hat in Schottland/Wärst du doch in Düsseldorf geblieben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef15903970d331887180233bfa0d15f0cee919f33f3a97a1613e32b99bbbc68a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEA669800228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541b9aef932ff922afb0780c12d20f6ee4123f237ca2b76937c45fd8424cdac3. 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/DKABA1100827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76ac270fd2ff6d6726290b273cf0c55b3b580f6919c0d9c40eb2c168df94645. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DKABA1101452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e79334afbd6f4a6b03205600fe7f2a84bbe9b6edfc3e4414b172b19ad8a19dc. 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/DKABA1100842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9fa02a55ef7123cb275a0f4e7a1825259d16c5a3d0d9b64e1a3417a5ae00d01. 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/DKABA1100809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a93b7e0007a12ace8483442b9a23dca76038b53f6abf60090b922db0a0c4f04. 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/DKABA1101463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e793f5ab00ab7e4c2aedf6c0433e18c77a4b04b3aa4846b3fb19235daad647. 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/DKABA1101466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ab208b8946cd8e57acfbdab177f534f4c07ab5efc49015a841a817b9b0573a. 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/DKABA1300617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1621b967ae7559df7b363ce383581f0928eb1093e20c10c9d333c2c931ae982f. 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/DKABA1300618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ae49ab403a3c5980e4709ea3349da5b44c30c6b6358038f749a5d6d0c2c833. 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/DKABA1300621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce32e5ac86d0bc88a3ee47afba28c3ac52a1f9e260c05a6893c2ebd622934e56. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DKABA1300625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52d983e09a5046a2c799ad2d1852afa6dde1a64fd9399ea662d70fa3d1aaf00. 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/DKABA1300626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645ec5ee9f5249902e3af5a7e18ef48c1fe7f6728c4b01512b0bb39b9c1efa90. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DKABA1300627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b309671f05f54c4d2f8dbaccf391d7ed8ee76c3ba48016259ba17bf7b12dfe3. 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/DKABA1300629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4666321ff6fc14e6770452ebb288183c4a7b608487556fbf2b5a1b86d516c680. 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/DEPI82021907.
Tobago Helloh (Power Dance Mix - Radio Edit)
Tobago Helloh - Power Dance Mix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf717d19f18a082e8d247fbef1007db57e9b581cf62f3d3581b2bc8ec0c2926c3. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DELJ21800083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ff1636321d8fd61209421002dca9963468553d1b3b5a70ea82864718746456. 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/DERK41900147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cde6df098961c066b6642349006026a30526a11307e9c4d46eeec95896e6215. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DERK41900146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e3e85177e993e83a6626951648817fcae4272df2119d973e92f5da265b745c. 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/DEA669701040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3391417a0cbc9ed7eefbf906c2ff8f15008be3bc259fdaba5eeeb341efaff7b2. 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/DEA669701010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e79334afbd6f4a6b03205600fe7f2a84bbe9b6edfc3e4414b172b19ad8a19dc. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DKABA1100842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d858ef240348e48edee1be3f87a586bfc537acb2b2d393b38677c67acc627ee. 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/DKABA1100878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ce7207999093a85be9a7fac3204926abdd99044058b985204f2cb1011eadd5. 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/DKABA1200822.