Trilo is a traditional Swedish folk song. The song is about longing for someone at sea, traditionally sung by Swedish and Norwegian wives as their husbands returned from sea. Trilo has been arranged
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 0x0f0d60b2ba74864647331650e9397ef1de1cbc1ba03389879d3359544003000f. 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/1ee83c96-bc3b-4ea6-b1c7-ae2d4e2373ff.json and https://artists.proofprofile.net/proofs/artist/1ee83c96-bc3b-4ea6-b1c7-ae2d4e2373ff.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 0x0690b1a8e83d2f7f4211b7553644ab887ef01250a27042766b0ccefbd057d86e. 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/GB8KE2204032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb16d458a0ef02d4cb22bf69b342d1bc687c5fd0b6280a3380c24c24d4f3d59. 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/GB8KE2053979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eebd51a824a0f8935b9e2879da31996187b5a8484f100c635cf91d7519ed727. 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/GBTEL1800152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe1ebf1820da8500b81936d75f4488337f865cba5a5763e20d43063b2e5ac51. 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/GBTEL1800143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f73d9e2f3956f080bbd6e78af80aed093e844e6a5dd0e05218f8ab6c214455. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB8KE1950793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e29b228031ec1f216709003d4fe0afd036acee5cce1a946fc359f7ccb551a5b. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBTEL1800099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe19afb5874030bca37b6d6b4869bda60572bb06ffc090a2ae32492d7317e455. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBTEL1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1890116100656ffe836112a403092888f3e698a5e773d2c11167af808df6150d. 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/GBTEL1800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x071b218113173b5c61b69edbd3f957d37c423e9ac47bd5c5320720d8efae2ef2. 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/GBTEL1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81db0e89c7ace859539882832b3debe2bc0fae5776324030bd8c5bdc29958502. 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/QMVRF1200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eaa9ed070d8a971077d0ead1e2c8f15fa3e29df56b062e3b07c9bf7cb67d0ab. 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/NLCK41403831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05a699ef2f00fffb54732dca22c7c03d3c7ede9bd6a178d56ee46595a9fdd32. 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/GBQXF1432012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3903ae827bf8add970b7c81f7118e69ac7e281277d80f4248d65fcf820ff22. 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/NLCK41017374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0b54a8ac18aea39b3e22c2bd0122f9835e85fdb28b77323dd1c796b194d488. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/NLCK41017373.