Torul is a town in Gümüşhane Province in the Black Sea Region of Turkey. It is the seat of Torul District.İlçe Belediyesi, Turkey Civil Administration Departments Inventory. Retrieved 1 March 2023. It
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 0x258d50ee063ba8c81cdecd8fd0326bbb8705cb0bef6c18382c52665006faa87e. 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/a347885f-12c4-4ce2-8aa5-89b8fb0b3eb6.json and https://artists.proofprofile.net/proofs/artist/a347885f-12c4-4ce2-8aa5-89b8fb0b3eb6.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 0xe30d64786116722d6dcb1e6905ab2823a77a59dddcac7af6d8167e0378cc5648. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DEKV20910718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bebb403b2665288f3f31440e1a3b2dbff4e0324fb51584a5411081b61988f7. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEKV20910920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3f38c1cb4a49bab05b50fad77dc40ddb20300fa7461f67d456466b33f3bfdd. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/DEKV20910929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf05d06495603ff756c812ac38d5cee97945a7a3bc74c4e48a149ca634a52dc6. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/US57M1386006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76327aefc48943cec8fb358d9269b5101ea75dcab50ed4a3e7e3bb35d77ce737. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEKV21612447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f502b368df54fdf10294c881e304d6f45d68d325f9c6ec080a3a5fa0a5807d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DEKV21612450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaf5062dcce38e6890df2f78381f2310f3dad22ea8266168f9fcb1545cbf792. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/DEKV20911993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7374c459646cfde0d111b009f1116ff2896c990485ec05afc13389be199825d5. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEKV20911995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104197d5212ca39dfaaccf63bf19647fa16cbab96f7b8c5724f18092e90fcafe. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DEKV20911996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874de850ba2b9623e60e2eca00afb65436ab8c4e4ac6f0ee3bc5b552ae046768. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/DEKV21612454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed58a909213119e9a2bdb2882262a83aa1e148fa6ecfb3346a24a67e150b950b. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/DEKV21612455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a34d3aa82622b409287440afe9c929b751f590f88efbae6e4249ca84ff7009. 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/DEKV21800174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9dcdc80a78537bf2110ec9c5f2b596ecbba348de3d2162c67783fc263cfade4. 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/DEKV21800175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66813b76e26a26754df464f0bd6587f55b39bf786ecf67b93e72fa5d2e9e9e0. 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/DEKV21800349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ee5c5572541383f5b8a3c7c66696705e6f5a80d2c12c7edad4ba6ab664a6d9. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/DEKV21800352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8f7586e3ce7e7d17209e691f0671a36561dcc0faf6485d1d6a571440170eed. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DEKV21800354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8d5e84b895a29d3e848288210a7c6391043666bbb0359e071c29fb82725427. 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/DEKV21800600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc966628b7e5bdfdb416297a3ffa3403c512b4c53c76d507a83bbedb7e4f41cc. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/DEKV21800602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0d78a9684894f628f66aab7814a9b4a11a63331e90173e8e9ff7b12064bc95. 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/DEKV21801393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2718994d84088c7eabe4e4c61c43e3d88eac301d6b9c782fda7ac8abc08d1f93. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/DEKV21801893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1863a6e15bca4d4bb69a8823c48e149d4a8c95ec11744e51215da364ef156a07. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEKV21801896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5252ec2e723a1701de9ab6db7532c3023fea0d314fe7e5c7e7a0c2207bd30616. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/DEKV21801898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbb3103d379aebdd5362f45cc4e40c7db8033b4431c679f58e21ef6aca8c80a. 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/DEKV21802015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbb3103d379aebdd5362f45cc4e40c7db8033b4431c679f58e21ef6aca8c80a. 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/DEKV21802015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860374fe7b3cdf0f65c79d3c55ca7e7e4d595cc0fdee692802015851efed8a42. 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/DEKV21802392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503cb3f4d28b5fdfc79e98b0d8259f921488b6ac69f333793dc4c22a42dd21d8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DEKV22500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaddd973e7ac967fbd2761cf68886fe15be71a9156c5c6a381363fbae47aae89. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEKV22500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860374fe7b3cdf0f65c79d3c55ca7e7e4d595cc0fdee692802015851efed8a42. 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/DEKV21802392.