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 0x31c1733a18c9bdca1a7a10e471ec4c5127568625e5b920e0eea9d5ac7cd46761. 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/2f989ad8-5f80-4e5c-9d0d-d43374891def.json and https://artists.proofprofile.net/proofs/artist/2f989ad8-5f80-4e5c-9d0d-d43374891def.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 0x0ed16785b26121d6208c8422f74ee98c21729a72f4e73426a669f38b0583a946. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLS241600418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca20241be99ff0edcdb72e2bd9abf3d2e6c24d8de9e2682b9a0c1de4bd5ba0f2. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:11:00Z), 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/NLZ291900122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330f1acf195bc2b9b00627c4803db2f3354a2f9fe6294bbfabeb427af130eea3. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:27:32Z), 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/NLZ291900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4db8ee07fa494f1105795cbc542369fa8c79d662ae1de47d01021b171b6783. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLZ291900133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd04acfa46d6cbf94dee180ba431c04c849c17a11a9a64fb453097dbb8f92b6d. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:33:23Z), 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/QZHNA2010822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b9145a55a61aa56c5ff021ab8c4a3377fb5aa9746a09142898e6e2e9411b72. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NL4PJ2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f61c0115564807c347ff789a31cd7fbcd33131f950f836b817d1cafc29632d. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:02:41Z), 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/NL4PJ2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75b67d2dc814cdeae5b508fbac0a6f089877658eb45ca59c0bca77316748126. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:16:59Z), 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/NL4PJ2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c93d6be5fc70f0820edb9edf4179b35b353b632f52609fafc49200d2f0b406. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/NLK072200086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178673077b6fe1e72e46cbbbcc959daa5e56cbf1798b4b055210852f2bcac0e5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLK072200297.
Geef Mij Maar De Helft (Akoestische Versie)
Geef Mij Maar De Helft - Akoestische Versie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436eac39f5637bacb631a776a831b5a5951c4186063d3432fc618c4d8b1616c5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLK072200327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6105d9e03df52be4ccac19e880a2b2e13046cb959ab1feab345a731bf051936a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/NLK072300125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0362e093a59bc16ed73a4aa052e58572754463890e9dbf82ac3d7040e05e6b5e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/NLK072300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8c7fa89aa75c7b7b930db7a66f0f8ca90453dade8f7083a942b8cbb7d6bf58. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:47:12Z), 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/NLK072300327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2e72573523f1258f2099bc834f5206f5d96a6c4dc4d5d3f8d9407ef2328ca1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NLK072500233.
Forgetting To Remember (feat. Kimberly Fransens)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95488833fd1b7ebc66fa42951c048e47576b2d31a2c6746b3b42db863b267ed. 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/QMJMT1902558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353b365e4b88e7def3c7d886c3d975fc95bf942b52eb0fbd1999a7760331d549. 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/NLM5S2000827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba486b4b110a6dc06c8d6e1eafd6a6154b652a5579f352c6f4180b6a5b6bdd00. 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/NLM5S2000791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cd7a208e0ded1cd77b6025d06e958480cf912454cad99bf4fe5824620d7385. 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/NLS241900541.